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[tor-commits] [translation/torbutton-torbuttondtd] Update translations for torbutton-torbuttondtd

To: tor-commits@xxxxxxxxxxxxxxxxxxxx
Subject: [tor-commits] [translation/torbutton-torbuttondtd] Update translations for torbutton-torbuttondtd
From: translation@xxxxxxxxxxxxxx
Date: Fri, 20 Mar 2015 10:47:18 +0000 (UTC)
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Delivery-date: Fri, 20 Mar 2015 06:47:44 -0400
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commit 31531a4f7a6676dfc069a2d8bb1dd33f2275c93b
Author: Translation commit bot <translation@xxxxxxxxxxxxxx>
Date:   Fri Mar 20 10:47:13 2015 +0000

    Update translations for torbutton-torbuttondtd
---
 ach/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ady/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 af/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ak/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 am/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ar/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 arn/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ast/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 az/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 be/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bn_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 bo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 br/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bs/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ca/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cs/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 csb/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 cv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cy_GB/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 da/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 de/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 dz/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 el/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 en/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 en_GB/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 eo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 es/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 es_AR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_CL/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_CO/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_MX/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 et/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 eu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fil/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 fo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fr_CA/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 fur/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 fy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ga/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gu_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 gun/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ha/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 he/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hr_HR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ht/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hy_AM/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ia/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 id/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 is/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 it/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ja/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 jv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ka/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 kk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 km/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 kn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ko/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ko_KR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ku/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ku_IQ/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 kw/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ky/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 la/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lb/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ln/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ml/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ms_MY/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 mt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 my/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nah/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 nap/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 nb/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nds/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ne/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nl_BE/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 nn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nso/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 oc/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 or/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pap/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 pl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pms/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ps/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pt_BR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ro/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ru/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ru@petr1708/torbutton.dtd |   27 +++++++++++++++++++++++++++
 scn/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 sco/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 si/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 si_LK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sk_SK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sl_SI/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 so/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 son/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 sq/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sr@latin/torbutton.dtd    |   27 +++++++++++++++++++++++++++
 st/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 su/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sw/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 szl/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ta/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 te/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 te_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 tg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 th/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ti/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 tk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 tl_PH/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 tr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ug@Arab/torbutton.dtd     |   27 +++++++++++++++++++++++++++
 uk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ur/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ur_PK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 uz/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ve/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 vi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 wa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 wo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 yo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 zh_CN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zh_HK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zh_TW/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 153 files changed, 4131 insertions(+)

diff --git a/ach/torbutton.dtd b/ach/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ach/torbutton.dtd
+++ b/ach/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ady/torbutton.dtd b/ady/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ady/torbutton.dtd
+++ b/ady/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/af/torbutton.dtd b/af/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/af/torbutton.dtd
+++ b/af/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ak/torbutton.dtd b/ak/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ak/torbutton.dtd
+++ b/ak/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/am/torbutton.dtd b/am/torbutton.dtd
index 81bdd67..28c8810 100644
--- a/am/torbutton.dtd
+++ b/am/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "á?¥á?á?µá??á?? á?¨á??á??á?½ á?¨Tor á? á?³á?½ á?°á? á??á??á??á?½ á?¨á??á??á?© á??á?á??á?®á?½á?? á?á??á?á?©">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ar/torbutton.dtd b/ar/torbutton.dtd
index dcea8c7..5949f43 100644
--- a/ar/torbutton.dtd
+++ b/ar/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ØªØºÙ?Ù?Ø± Ø§Ù?ØªÙ?Ø§ØµÙ?Ù? Ø§Ù?ØªÙ? ØªÙ?Ù?Ø²Ù? Ø¹Ù? Ø§Ù?Ù?Ø³ØªØ®Ø¯Ù?Ù?Ù? Ø§Ù?Ø¢Ø®Ø±Ù?Ù? Ù?Ù?ØªØµÙ?Ø ØªÙ?Ø±">
 <!ENTITY torbutton.prefs.sec_caption "Ù?Ø³ØªÙ?Ù? Ø§Ù?Ø£Ù?Ø§Ù?">
 <!ENTITY torbutton.prefs.sec_low "Ù?Ù?Ø®Ù?Ø¶ (Ø§Ù?ØªØ±Ø§Ø¶Ù?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ø´Ø¨Ù? Ù?Ù?Ø®Ù?Ø¶">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ø´Ø¨Ù? Ø¹Ø§Ù?Ù?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ø¹Ø§Ù?Ù?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ù?Ù?Ù? Ù?Ø®ØµØµØ©">
 <!ENTITY torbutton.circuit_display.title "Ø¯Ø§Ø¦Ø±Ø© ØªÙ?Ø± Ù?Ù?Ø°Ø§ Ø§Ù?Ù?Ù?Ù?Ø¹">
+
diff --git a/arn/torbutton.dtd b/arn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/arn/torbutton.dtd
+++ b/arn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ast/torbutton.dtd b/ast/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ast/torbutton.dtd
+++ b/ast/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/az/torbutton.dtd b/az/torbutton.dtd
index c0d3f71..f5889bd 100644
--- a/az/torbutton.dtd
+++ b/az/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "TÉ?hlÃ¼kÉ?sizlik sÉ?viyyÉ?si">
 <!ENTITY torbutton.prefs.sec_low "ZÉ?if(cari)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Orta-AÅ?aÄ?Ä±">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Orta-yÃ¼ksÉ?k">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "YuksÉ?k">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Manual dÉ?yÉ?rlÉ?r">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/be/torbutton.dtd b/be/torbutton.dtd
index ba3b20f..26d255f 100644
--- a/be/torbutton.dtd
+++ b/be/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bg/torbutton.dtd b/bg/torbutton.dtd
index 415b012..4dc63f6 100644
--- a/bg/torbutton.dtd
+++ b/bg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Ð?Ð¸Ð²Ð¾ Ð½Ð° Ð·Ð°Ñ?Ð¸Ñ?Ð°">
 <!ENTITY torbutton.prefs.sec_low "Ð?Ð¸Ñ?ÐºÐ¾ (Ð¿Ð¾ Ð¿Ð¾Ð´Ñ?Ð°Ð·Ð±Ð¸Ñ?Ð°Ð½Ðµ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ?ÐµÐ´Ð½Ð¾-Ð½Ð¸Ñ?ÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð¡Ñ?ÐµÐ´Ð½Ð¾-Ð²Ð¸Ñ?Ð¾ÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð?Ð¸Ñ?Ð¾ÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð¡Ñ?Ð¾Ð¹Ð½Ð¾Ñ?Ñ?Ð¸ Ð¿Ð¾ Ð¸Ð·Ð±Ð¾Ñ?">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bn/torbutton.dtd b/bn/torbutton.dtd
index b20256f..28c588f 100644
--- a/bn/torbutton.dtd
+++ b/bn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bn_IN/torbutton.dtd b/bn_IN/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/bn_IN/torbutton.dtd
+++ b/bn_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bo/torbutton.dtd b/bo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/bo/torbutton.dtd
+++ b/bo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/br/torbutton.dtd b/br/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/br/torbutton.dtd
+++ b/br/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bs/torbutton.dtd b/bs/torbutton.dtd
index 391c954..d022a9d 100644
--- a/bs/torbutton.dtd
+++ b/bs/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ca/torbutton.dtd b/ca/torbutton.dtd
index 335510a..10d1c26 100644
--- a/ca/torbutton.dtd
+++ b/ca/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Nivell de seguretat">
 <!ENTITY torbutton.prefs.sec_low "Baix (per defecte)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MitjÃ -baix">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MitjÃ -alt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valors personalitzats">
 <!ENTITY torbutton.circuit_display.title "Circuit de tor per a aquest lloc">
+
diff --git a/cs/torbutton.dtd b/cs/torbutton.dtd
index 915e28f..82d4686 100644
--- a/cs/torbutton.dtd
+++ b/cs/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Ã?roveÅ? zabezpeÄ?enÃ">
 <!ENTITY torbutton.prefs.sec_low "NÃzkÃ¡ (vÃ½chozÃ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "StÅ?ednÄ? nÃzkÃ¡">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "StÅ?ednÄ? vysokÃ¡">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "VysokÃ¡">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "VlastnÃ hodnoty">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/csb/torbutton.dtd b/csb/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/csb/torbutton.dtd
+++ b/csb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cv/torbutton.dtd b/cv/torbutton.dtd
index 790f714..5c35f64 100644
--- a/cv/torbutton.dtd
+++ b/cv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cy/torbutton.dtd b/cy/torbutton.dtd
index bbdebc4..34d4838 100644
--- a/cy/torbutton.dtd
+++ b/cy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cy_GB/torbutton.dtd b/cy_GB/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/cy_GB/torbutton.dtd
+++ b/cy_GB/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/da/torbutton.dtd b/da/torbutton.dtd
index 70d7c1c..b9147d1 100644
--- a/da/torbutton.dtd
+++ b/da/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Tilpas detaljer som adskiller dig fra andre Tor Browser-brugere">
 <!ENTITY torbutton.prefs.sec_caption "Sikkerheds Niveau">
 <!ENTITY torbutton.prefs.sec_low "Lav (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mellemlav">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MellemhÃ¸j">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸j">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Brugervalgte vÃ¦rdier:">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for dette website">
+
diff --git a/de/torbutton.dtd b/de/torbutton.dtd
index 612267c..9c1d352 100644
--- a/de/torbutton.dtd
+++ b/de/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Details Ã¤ndern, die Sie von anderen Tor-Browser-Benutzern unterscheiden">
 <!ENTITY torbutton.prefs.sec_caption "Sicherheitslevel">
 <!ENTITY torbutton.prefs.sec_low "gering (Standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "unteres Mittel">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "oberes Mittel">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "hoch">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Eigene Werte">
 <!ENTITY torbutton.circuit_display.title "Tor-Kanal fÃ¼r diese Seite">
+
diff --git a/dz/torbutton.dtd b/dz/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/dz/torbutton.dtd
+++ b/dz/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/el/torbutton.dtd b/el/torbutton.dtd
index 1b8bb9b..5324488 100644
--- a/el/torbutton.dtd
+++ b/el/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Î?Î»Î»Î¬Î¾Ï?Îµ Ï?Î¹Ï? Î»ÎµÏ?Ï?Î¿Î¼ÎÏ?ÎµÎ¹ÎµÏ? Ï?Î¿Ï? Ï?Î±Ï? Î´Î¹Î±ÎºÏ?Î¯Î½ÎµÎ¹ Î±Ï?Ï? Î¬Î»Î»Î¿Ï?Ï? Ï?Ï?Î®Ï?Ï?ÎµÏ? Ï?Î¿Ï? Tor Browser ">
 <!ENTITY torbutton.prefs.sec_caption "Î?Ï?Î¯Ï?ÎµÎ´Î¿ Î±Ï?Ï?Î¬Î»ÎµÎ¹Î±Ï?">
 <!ENTITY torbutton.prefs.sec_low "Î§Î±Î¼Î·Î»Ï? (Ï?Ï?Î¿ÎµÏ?Î¹Î»ÎµÎ³Î¼ÎÎ½Î¿)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Î?ÎµÏ?Î±Î¯Î¿-Ï?Î±Î¼Î·Î»Ï?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Î?ÎµÏ?Î±Î¯Î¿-Ï?Ï?Î·Î»Ï?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Î¥Ï?Î·Î»Ï?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Î?Î¾Î±Ï?Î¿Î¼Î¹ÎºÎµÏ?Î¼ÎÎ½ÎµÏ? ÎµÏ?Î¹Î»Î¿Î³ÎÏ?">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/en/torbutton.dtd b/en/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/en/torbutton.dtd
+++ b/en/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/en_GB/torbutton.dtd b/en_GB/torbutton.dtd
index c6ce0ba..d5a2ae6 100644
--- a/en_GB/torbutton.dtd
+++ b/en_GB/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (Default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/eo/torbutton.dtd b/eo/torbutton.dtd
index cbea50b..b50eb9d 100644
--- a/eo/torbutton.dtd
+++ b/eo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Sekureca nivelo">
 <!ENTITY torbutton.prefs.sec_low "Malalta (implicita)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Meze malalta">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Meze alta">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alta">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Propraj valoroj">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es/torbutton.dtd b/es/torbutton.dtd
index c33695c..3006a83 100644
--- a/es/torbutton.dtd
+++ b/es/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Cambiar los detalles que le distinguen de otros usuarios de Navegador Tor">
 <!ENTITY torbutton.prefs.sec_caption "Nivel de Seguridad">
 <!ENTITY torbutton.prefs.sec_low "Bajo (por defecto)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medio-Bajo">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores Personalizados">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este sitio">
+
diff --git a/es_AR/torbutton.dtd b/es_AR/torbutton.dtd
index b279618..9a4c87f 100644
--- a/es_AR/torbutton.dtd
+++ b/es_AR/torbutton.dtd
@@ -155,8 +155,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_CL/torbutton.dtd b/es_CL/torbutton.dtd
index 1323378..84c0092 100644
--- a/es_CL/torbutton.dtd
+++ b/es_CL/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_CO/torbutton.dtd b/es_CO/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/es_CO/torbutton.dtd
+++ b/es_CO/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_MX/torbutton.dtd b/es_MX/torbutton.dtd
index 0a16144..fca8e97 100644
--- a/es_MX/torbutton.dtd
+++ b/es_MX/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/et/torbutton.dtd b/et/torbutton.dtd
index a410d1a..5204955 100644
--- a/et/torbutton.dtd
+++ b/et/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/eu/torbutton.dtd b/eu/torbutton.dtd
index 22ce9c7..0511ec4 100644
--- a/eu/torbutton.dtd
+++ b/eu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Zu beste Tor Browser erabiltzaileengandik nabarmentzen zaituzten xehetasunak aldatu">
 <!ENTITY torbutton.prefs.sec_caption "Segurtasun maila">
 <!ENTITY torbutton.prefs.sec_low "Baxua (lehentsia)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ertaina-baxua">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ertaina-altua">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Altua">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Balio pertsonalizatuak">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fa/torbutton.dtd b/fa/torbutton.dtd
index 3c2e698..1c8f5fc 100644
--- a/fa/torbutton.dtd
+++ b/fa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ØªØºÙ?Ù?Ø±Ø¯Ø§Ø¯Ù? Ø¬Ø²Ø¦Ù?Ø§ØªÙ? Ù?Ù? Ø´Ù?Ø§Ø±Ø§ Ø§Ø² Ù?Ø§Ø±Ø¨Ø±Ø§Ù? Ø¯Ù?Ú¯Ø± ØªÙ?Ø± ØªÙ?Ù?Ø²Ù?Ù?â??Ù?Ù?Ø¯">
 <!ENTITY torbutton.prefs.sec_caption "Ø³Ø·Ø Ø§Ù?Ù?Û?Øª">
 <!ENTITY torbutton.prefs.sec_low "Ù¾Ø§Û?Û?Ù? (Ø¨Ù? Ø·Ù?Ø± Ù¾Û?Ø´ Ù?Ø±Ø¶)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ù?ØªÙ?Ø³Ø· â??â??- Ú©Ù?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ù?ØªÙ?Ø³Ø· â??â??- Ø¨Ø§Ù?Ø§">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ø²Û?Ø§Ø¯">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ØªÙ?Ø¸Û?Ù? Ø³Ù?Ø§Ø±Ø´Û?">
 <!ENTITY torbutton.circuit_display.title "Ù?Ø¯Ø§Ø± Tor Ø¨Ø±Ø§Û? Ø§Û?Ù? Ø³Ø§Û?Øª">
+
diff --git a/fi/torbutton.dtd b/fi/torbutton.dtd
index 3d1428d..5f06f7b 100644
--- a/fi/torbutton.dtd
+++ b/fi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Muuta lisÃ¤tietoja, jotka erottavat sinut muista Tor-selainkÃ¤yttÃ¤jistÃ¤">
 <!ENTITY torbutton.prefs.sec_caption "Turvallisuustaso">
 <!ENTITY torbutton.prefs.sec_low "Alhainen (oletus)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Keskitaso-Alhainen">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Keskitaso-Korkea">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Korkea">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Omat arvot">
 <!ENTITY torbutton.circuit_display.title "Tor-kiertotie tÃ¤lle sivustolle">
+
diff --git a/fil/torbutton.dtd b/fil/torbutton.dtd
index 7061f59..7a83708 100644
--- a/fil/torbutton.dtd
+++ b/fil/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Lebel ng Seguridad">
 <!ENTITY torbutton.prefs.sec_low "Mababa (rematado)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Gitnang-Mababa">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Gitnang-Mataas">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Mataas">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom na Halaga">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fo/torbutton.dtd b/fo/torbutton.dtd
index 3fc55ba..37eee09 100644
--- a/fo/torbutton.dtd
+++ b/fo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Broyt upplÃ½singar, sum skilja teg frÃ¡ Ã¸Ã°rum, sum brÃºka Tor-kagan">
 <!ENTITY torbutton.prefs.sec_caption "Trygdarstig">
 <!ENTITY torbutton.prefs.sec_low "LÃ¡gt (vanliga)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MiÃ°al-lÃ¡gt">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MiÃ°al-hÃ¸gt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸gt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "TillagaÃ° virÃ°i">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fr/torbutton.dtd b/fr/torbutton.dtd
index 63ee1c8..d3e9c6a 100644
--- a/fr/torbutton.dtd
+++ b/fr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Modifier les dÃ©tails qui vous distingue des autres utilisateurs du Navigateur Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveau de sÃ©curitÃ©">
 <!ENTITY torbutton.prefs.sec_low "Faible (dÃ©faut)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Moyen-Bas">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Moyen-Haut">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Haut">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valeurs personnalisÃ©es">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pour ce site">
+
diff --git a/fr_CA/torbutton.dtd b/fr_CA/torbutton.dtd
index cefcfe9..822ae64 100644
--- a/fr_CA/torbutton.dtd
+++ b/fr_CA/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Modifier les dÃ©tails qui vous distingue d'autres utilisateurs du navigateur Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveau de sÃ©curitÃ©">
 <!ENTITY torbutton.prefs.sec_low "Bas (par dÃ©faut)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Moyen-bas">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Moyen-haut">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ã?levÃ©">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valeurs personnalisÃ©es">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pour ce site">
+
diff --git a/fur/torbutton.dtd b/fur/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/fur/torbutton.dtd
+++ b/fur/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fy/torbutton.dtd b/fy/torbutton.dtd
index a082fc6..ca7c843 100644
--- a/fy/torbutton.dtd
+++ b/fy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Befeiligingsnivo">
 <!ENTITY torbutton.prefs.sec_low "Leech (standert)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Midsmjittich-Leech">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Midsmjittich-Heech">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Heech">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Oanpaste wearden">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ga/torbutton.dtd b/ga/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ga/torbutton.dtd
+++ b/ga/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gl/torbutton.dtd b/gl/torbutton.dtd
index 270b7c4..3e152e0 100644
--- a/gl/torbutton.dtd
+++ b/gl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gu/torbutton.dtd b/gu/torbutton.dtd
index bde8b19..86d948b 100644
--- a/gu/torbutton.dtd
+++ b/gu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gu_IN/torbutton.dtd b/gu_IN/torbutton.dtd
index 4f74c35..63707cd 100644
--- a/gu_IN/torbutton.dtd
+++ b/gu_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gun/torbutton.dtd b/gun/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/gun/torbutton.dtd
+++ b/gun/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ha/torbutton.dtd b/ha/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ha/torbutton.dtd
+++ b/ha/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/he/torbutton.dtd b/he/torbutton.dtd
index d283c52..cbe21b3 100644
--- a/he/torbutton.dtd
+++ b/he/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "×¨×?×ª ×?×?×?×?×?">
 <!ENTITY torbutton.prefs.sec_low "× ×?×?×? (×?×¨×?×¨×ª ×?×?×?×?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "×?×?× ×?× ×? × ×?×?×?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "×?×?× ×?× ×?-×?×?×?×?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "×?×?×?×?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "×¢×¨×?×?×? ×?×?×ª×?×?×?×? ×?×?×©×?×ª">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hi/torbutton.dtd b/hi/torbutton.dtd
index 6d99e20..65b013d 100644
--- a/hi/torbutton.dtd
+++ b/hi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hr/torbutton.dtd b/hr/torbutton.dtd
index 4d267ba..17538f2 100644
--- a/hr/torbutton.dtd
+++ b/hr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hr_HR/torbutton.dtd b/hr_HR/torbutton.dtd
index 6a4cadd..9d43f70 100644
--- a/hr_HR/torbutton.dtd
+++ b/hr_HR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Promjeni detalje koji te razlikuju od ostalih korisnika Tor-a">
 <!ENTITY torbutton.prefs.sec_caption "Razina Sigurnosti">
 <!ENTITY torbutton.prefs.sec_low "Niska (zadano)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Srednje niska">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Srednje visoka">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Visoka">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "PrilagoÄ?ene Vrijednosti">
 <!ENTITY torbutton.circuit_display.title "Tor Krug za ovu stranicu">
+
diff --git a/ht/torbutton.dtd b/ht/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ht/torbutton.dtd
+++ b/ht/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hu/torbutton.dtd b/hu/torbutton.dtd
index 00bbf08..59b0e13 100644
--- a/hu/torbutton.dtd
+++ b/hu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "VÃ¡ltoztassa meg a rÃ©szleteket, amik megkÃ¼lÃ¶nbÃ¶ztetik a tÃ¶bbi Tor bÃ¶ngÃ©szÅ? felhasznÃ¡lÃ³tÃ³l">
 <!ENTITY torbutton.prefs.sec_caption "BiztonsÃ¡gi szint">
 <!ENTITY torbutton.prefs.sec_low "Alacsony (alapÃ©rtelmezett)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "KÃ¶zepesen alacsony">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "KÃ¶zepesen magas">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Magas">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "EgyÃ©ni Ã©rtÃ©kek">
 <!ENTITY torbutton.circuit_display.title "Tor Ã¡ramkÃ¶r ehhez az oldalhoz">
+
diff --git a/hy/torbutton.dtd b/hy/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/hy/torbutton.dtd
+++ b/hy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hy_AM/torbutton.dtd b/hy_AM/torbutton.dtd
index 5d2eb3e..a31a629 100644
--- a/hy_AM/torbutton.dtd
+++ b/hy_AM/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ia/torbutton.dtd b/ia/torbutton.dtd
index a9d33a3..b416cca 100644
--- a/ia/torbutton.dtd
+++ b/ia/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/id/torbutton.dtd b/id/torbutton.dtd
index 47f1aa1..43d20f3 100644
--- a/id/torbutton.dtd
+++ b/id/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Level Keamanan">
 <!ENTITY torbutton.prefs.sec_low "Rendah (baku)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Menengah-Rendah">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Menengah-Tinggi">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Tinggi">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Nilai Kustom">
 <!ENTITY torbutton.circuit_display.title "Sirkuit Tor untuk website ini">
+
diff --git a/is/torbutton.dtd b/is/torbutton.dtd
index e67fec2..2bcb717 100644
--- a/is/torbutton.dtd
+++ b/is/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/it/torbutton.dtd b/it/torbutton.dtd
index bd9755f..f0d74e8 100644
--- a/it/torbutton.dtd
+++ b/it/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Cambia i dettagli che ti distinguono dagli altri utenti di Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Livello di Sicurezza">
 <!ENTITY torbutton.prefs.sec_low "Basso (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "Questo permette la migliore esperienza di usablitÃ .">
+<!ENTITY torbutton.prefs.sec_low_desc "A questo livello di sicurezza, tutte le features del browser sono abilitate.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "Il meccanismo di rendering SVG OpenType Ã¨ disabilitato.">
 <!ENTITY torbutton.prefs.sec_med_low "Medio-Basso">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Alcune ottimizzazioni di performance JavaScript sono disabilitate.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Gli scripts su alcuni siti possono girare piÃ¹ lenti.">
+<!ENTITY torbutton.prefs.sec_jar_desc "I file JAR remoti sono bloccati.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "I file JAR sono molto rari nel web, ma possono essere fonte di XSS o altri attacchi.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Alcuni meccanismi di visualizzazione di equazioni matematiche sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML Ã¨ disabilitato.">
 <!ENTITY torbutton.prefs.sec_med_high "Medio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Alcuni rendering dei font sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Alcuni tipi di immagini sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "Le immagini SVG sono disabilitate.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript Ã¨ disabilitato di default su tutti i siti non-HTTPS.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript Ã¨ disabilitato di default su tutti i siti.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Molti formati audio e video sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM Ã¨ l'unico codec che rimane abilitato.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Alcuni caratteri e icone possono non essere visualizzati correttamente.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valori Customizzabili">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor per questo sito">
+
diff --git a/ja/torbutton.dtd b/ja/torbutton.dtd
index 1dc7e6c..4bdafc2 100644
--- a/ja/torbutton.dtd
+++ b/ja/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ã??ã?ªã??ã?¨ã?»ã??ã?®Torã??ã?©ã?¦ã?¶ã?®ã?¦ã?¼ã?¶ã?¼ã??å?ºå?¥ã??ã??è©³ç´°ã??å¤?æ?´">
 <!ENTITY torbutton.prefs.sec_caption "ã?»ã?ã?¥ã?ªã??ã?£ã?¬ã??ã?«">
 <!ENTITY torbutton.prefs.sec_low "ä½?ã??(ã??ã??ã?©ã?«ã??)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸ã?®ä½?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸ã?®ä¸?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«?ã??">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ã?«ã?¹ã?¿ã? å?¤">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/jv/torbutton.dtd b/jv/torbutton.dtd
index f96ef73..5b916e6 100644
--- a/jv/torbutton.dtd
+++ b/jv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ka/torbutton.dtd b/ka/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ka/torbutton.dtd
+++ b/ka/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kk/torbutton.dtd b/kk/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/kk/torbutton.dtd
+++ b/kk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/km/torbutton.dtd b/km/torbutton.dtd
index 61a0aff..517525a 100644
--- a/km/torbutton.dtd
+++ b/km/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "á??á??á??á?¶á??á??á??á??á??á?¼á??â??á??á??á??á??á??á?¶á??â??á??á??á??á?¢á?·á??â??á??á??á??â??â??á??á??á??á? á?¶á??â??á??á?¶á??â??á??á?»á??â??á??á??á??á?¶â??á?¢á??á??á??â??á??á?¸â??á?¢á??á??á??â??á??á??á??á?¾á??á??á??á?¶á??á??â?? Tor Browser á??á??á??á??á??â??á??á??á??">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kn/torbutton.dtd b/kn/torbutton.dtd
index 265d0bd..7630580 100644
--- a/kn/torbutton.dtd
+++ b/kn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à²¸à³?à²°à²?à³?à²·à²¤à²¾ à²®à²?à³?à²?">
 <!ENTITY torbutton.prefs.sec_low "à²?à²¡à²¿à²®à³? (à²¡à²¿à³?à²«à²¾à²²à³?à²?à³?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à²®à²§à³?à²¯à²®-à²?à²¡à²¿à²®à³?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à²®à²§à³?à²¯à²®-à²¹à³?à²?à³?à²?à³?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à²¹à³?à²?à³?à²?à³?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à²µà²¾à²¡à²¿à²?à³? à²®à³?à²²à³?à²¯à²?à²³à³?">
 <!ENTITY torbutton.circuit_display.title "à²? à²¸à³?à³?à²?à³?à²?à³? à²?à²¾à²°à³? à²¸à²°à³?à²?à³?à²¯à³?à²?à³?">
+
diff --git a/ko/torbutton.dtd b/ko/torbutton.dtd
index 9ef3362..8496505 100644
--- a/ko/torbutton.dtd
+++ b/ko/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ë?¤ë¥¸ Tor browser ì?¬ì?©ì??ë¡?ë¶?í?° êµ¬ë³?ë??ë?? ì?¸ë¶? ì?¬í? ë³?ê²½">
 <!ENTITY torbutton.prefs.sec_caption "ë³´ì?? ë?±ê¸?">
 <!ENTITY torbutton.prefs.sec_low "ë?®ì?? (ê¸°ë³¸)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ì¤?ê°? ë?®ì??">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ì¤?ê°? ë??ì??">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "ë??ì??">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ë§?ì¶¤ ê°?">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ko_KR/torbutton.dtd b/ko_KR/torbutton.dtd
index 2a0dd14..b52f5af 100644
--- a/ko_KR/torbutton.dtd
+++ b/ko_KR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ku/torbutton.dtd b/ku/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ku/torbutton.dtd
+++ b/ku/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ku_IQ/torbutton.dtd b/ku_IQ/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ku_IQ/torbutton.dtd
+++ b/ku_IQ/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kw/torbutton.dtd b/kw/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/kw/torbutton.dtd
+++ b/kw/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ky/torbutton.dtd b/ky/torbutton.dtd
index 1b02755..4402169 100644
--- a/ky/torbutton.dtd
+++ b/ky/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/la/torbutton.dtd b/la/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/la/torbutton.dtd
+++ b/la/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lb/torbutton.dtd b/lb/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/lb/torbutton.dtd
+++ b/lb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lg/torbutton.dtd b/lg/torbutton.dtd
index 5b89527..28219c9 100644
--- a/lg/torbutton.dtd
+++ b/lg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ln/torbutton.dtd b/ln/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ln/torbutton.dtd
+++ b/ln/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lo/torbutton.dtd b/lo/torbutton.dtd
index 592cd66..c758448 100644
--- a/lo/torbutton.dtd
+++ b/lo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "àº¥àº°àº?àº±àº?àº?àº§àº²àº¡àº?àºàº?à»?àº?">
 <!ENTITY torbutton.prefs.sec_low "àº?à»?à»?àº² (àº?àº²àº¡àº?à»?àº²à»?àº?àºµàº¡)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "àº?àº²àº?-àº?à»?à»?àº²">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "àº?àº²àº?-àºªàº¹àº?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "àºªàº¹àº?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "àº?àº³àº?àº»àº?àº?à»?àº²à»?àºàº?">
 <!ENTITY torbutton.circuit_display.title "àº§àº»àº?àº?àºàº? Tor àºªàº³àº¥àº±àº?à»?àº§àº±àº?à»?àº?àº?àºµà»?">
+
diff --git a/lt/torbutton.dtd b/lt/torbutton.dtd
index b43d560..3985a88 100644
--- a/lt/torbutton.dtd
+++ b/lt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lv/torbutton.dtd b/lv/torbutton.dtd
index 06b6e72..9bc2f97 100644
--- a/lv/torbutton.dtd
+++ b/lv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "MainÄ«t informÄ?ciju, kura dara JÅ«s atÅ¡Ä·irÄ«gus no citiem PÄ?rlÅ«ka Tor lietotÄ?jiem">
 <!ENTITY torbutton.prefs.sec_caption "DroÅ¡Ä«bas lÄ«menis">
 <!ENTITY torbutton.prefs.sec_low "Zems (noklusÄ?juma vÄ?rtÄ«ba)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "VidÄ?ji zems">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "VidÄ?ji augsts">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Augsts">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "PielÄ?gotas vÄ?rtÄ«bas">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mg/torbutton.dtd b/mg/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mg/torbutton.dtd
+++ b/mg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mi/torbutton.dtd b/mi/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mi/torbutton.dtd
+++ b/mi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mk/torbutton.dtd b/mk/torbutton.dtd
index 09e57ca..93ec085 100644
--- a/mk/torbutton.dtd
+++ b/mk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ml/torbutton.dtd b/ml/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ml/torbutton.dtd
+++ b/ml/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mn/torbutton.dtd b/mn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mn/torbutton.dtd
+++ b/mn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mr/torbutton.dtd b/mr/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mr/torbutton.dtd
+++ b/mr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ms_MY/torbutton.dtd b/ms_MY/torbutton.dtd
index 44f4f88..252d770 100644
--- a/ms_MY/torbutton.dtd
+++ b/ms_MY/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ubah butir-butir yang membezakan anda daripada pengguna lain Pelayar Tor">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mt/torbutton.dtd b/mt/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mt/torbutton.dtd
+++ b/mt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/my/torbutton.dtd b/my/torbutton.dtd
index 81aa01b..c8e8f8c 100644
--- a/my/torbutton.dtd
+++ b/my/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nah/torbutton.dtd b/nah/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nah/torbutton.dtd
+++ b/nah/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nap/torbutton.dtd b/nap/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nap/torbutton.dtd
+++ b/nap/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nb/torbutton.dtd b/nb/torbutton.dtd
index 8cc0b77..1cc0fcd 100644
--- a/nb/torbutton.dtd
+++ b/nb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Endre detaljer som skiller deg fra andre Tor Browser brukere.">
 <!ENTITY torbutton.prefs.sec_caption "Sikkerhets nivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "Lav (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lav">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¸y">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸y">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Egenspesifiserte verdier">
 <!ENTITY torbutton.circuit_display.title "Tor-krets for denne siden">
+
diff --git a/nds/torbutton.dtd b/nds/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nds/torbutton.dtd
+++ b/nds/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ne/torbutton.dtd b/ne/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ne/torbutton.dtd
+++ b/ne/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nl/torbutton.dtd b/nl/torbutton.dtd
index 4e48991..1044f3b 100644
--- a/nl/torbutton.dtd
+++ b/nl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Verander details die je onderscheiden van andere Tor Browser gebruikers">
 <!ENTITY torbutton.prefs.sec_caption "Beveiligingsniveau">
 <!ENTITY torbutton.prefs.sec_low "Laag (standaard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Laag">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-Hoog">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Hoog">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Aangepaste waarden">
 <!ENTITY torbutton.circuit_display.title "Tor circuit voor deze website">
+
diff --git a/nl_BE/torbutton.dtd b/nl_BE/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nl_BE/torbutton.dtd
+++ b/nl_BE/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nn/torbutton.dtd b/nn/torbutton.dtd
index 4416735..166fb3d 100644
--- a/nn/torbutton.dtd
+++ b/nn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "TryggingsnivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "LÃ¥g (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lÃ¥g">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¸g">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸g">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "SjÃ¸lvvalde verdiar">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nso/torbutton.dtd b/nso/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nso/torbutton.dtd
+++ b/nso/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/oc/torbutton.dtd b/oc/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/oc/torbutton.dtd
+++ b/oc/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/or/torbutton.dtd b/or/torbutton.dtd
index a37ddb8..69a214a 100644
--- a/or/torbutton.dtd
+++ b/or/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pa/torbutton.dtd b/pa/torbutton.dtd
index 07334d9..670c60c 100644
--- a/pa/torbutton.dtd
+++ b/pa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pap/torbutton.dtd b/pap/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/pap/torbutton.dtd
+++ b/pap/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pl/torbutton.dtd b/pl/torbutton.dtd
index 0e16322..b445997 100644
--- a/pl/torbutton.dtd
+++ b/pl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ZmieÅ? szczegÃ³Å?y odrÃ³Å¼niajÄ?ce CiÄ? od innych uÅ¼ytkownikÃ³w PrzeglÄ?darki Tora">
 <!ENTITY torbutton.prefs.sec_caption "Poziom bezpieczeÅ?stwa">
 <!ENTITY torbutton.prefs.sec_low "Niski (domyÅ?lny)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Å?redni-Niski">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Å?redni-Wysoki">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Wysoki">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "WartoÅ?ci niestandardowe">
 <!ENTITY torbutton.circuit_display.title "ObwÃ³d Tor dla tej strony">
+
diff --git a/pms/torbutton.dtd b/pms/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/pms/torbutton.dtd
+++ b/pms/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ps/torbutton.dtd b/ps/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ps/torbutton.dtd
+++ b/ps/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pt/torbutton.dtd b/pt/torbutton.dtd
index 0ed9ab4..4542633 100644
--- a/pt/torbutton.dtd
+++ b/pt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "NÃvel de SeguranÃ§a">
 <!ENTITY torbutton.prefs.sec_low "Baixo (prÃ©-definido)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MÃ©dio-Baixo">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MÃ©dio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores definidos">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este site">
+
diff --git a/pt_BR/torbutton.dtd b/pt_BR/torbutton.dtd
index 6cd66d4..57bf10d 100644
--- a/pt_BR/torbutton.dtd
+++ b/pt_BR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Alterar os detalhes  que distinguem vocÃª de outros usuÃ¡rios do Navegador Tor">
 <!ENTITY torbutton.prefs.sec_caption "NÃvel de SeguranÃ§a">
 <!ENTITY torbutton.prefs.sec_low "Baixo (padrÃ£o)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MÃ©dia-Baixa">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MÃ©dio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alta">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores Personalizados">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este site">
+
diff --git a/ro/torbutton.dtd b/ro/torbutton.dtd
index f0b5017..73f2cd4 100644
--- a/ro/torbutton.dtd
+++ b/ro/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Nivel securitate">
 <!ENTITY torbutton.prefs.sec_low "ScÄ?zut (implicit)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mediu-scÄ?zut">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Mediu-Ã®nalt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ã?nalt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valori personalizate">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pentru acest site">
+
diff --git a/ru/torbutton.dtd b/ru/torbutton.dtd
index 8312162..4d472cb 100644
--- a/ru/torbutton.dtd
+++ b/ru/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð?Ð·Ð¼ÐµÐ½Ð¸Ñ?Ñ? Ñ?Ð²ÐµÐ´ÐµÐ½Ð¸Ñ?, Ð¾Ñ?Ð»Ð¸Ñ?Ð°Ñ?Ñ?Ð¸Ðµ Ð²Ð°Ñ? Ð¾Ñ? Ð´Ñ?Ñ?Ð³Ð¸Ñ? Ð¿Ð¾Ð»Ñ?Ð·Ð¾Ð²Ð°Ñ?ÐµÐ»ÐµÐ¹ Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Ð£Ñ?Ð¾Ð²ÐµÐ½Ñ? Ð±ÐµÐ·Ð¾Ð¿Ð°Ñ?Ð½Ð¾Ñ?Ñ?Ð¸">
 <!ENTITY torbutton.prefs.sec_low "Ð?Ð¸Ð·ÐºÐ¸Ð¹ (Ð¿Ð¾ Ñ?Ð¼Ð¾Ð»Ñ?Ð°Ð½Ð¸Ñ?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ?ÐµÐ´Ð½Ð¸Ð¹">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð£Ð¼ÐµÑ?ÐµÐ½Ð½Ð¾ Ð²Ñ?Ñ?Ð¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð?Ñ?Ñ?Ð¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð¡Ð¾Ð±Ñ?Ñ?Ð²ÐµÐ½Ð½Ñ?Ðµ Ð·Ð½Ð°Ñ?ÐµÐ½Ð¸Ñ?">
 <!ENTITY torbutton.circuit_display.title "Ð¦ÐµÐ¿Ð¾Ñ?ÐºÐ° Tor Ð´Ð»Ñ? Ñ?Ñ?Ð¾Ð³Ð¾ Ñ?Ð°Ð¹Ñ?Ð°">
+
diff --git a/ru@petr1708/torbutton.dtd b/ru@petr1708/torbutton.dtd
index 16f8042..c15264a 100644
--- a/ru@petr1708/torbutton.dtd
+++ b/ru@petr1708/torbutton.dtd
@@ -168,8 +168,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð?Ð·Ð¼Ñ£Ð½Ð¸Ñ?Ñ? Ñ?Ð²Ñ£Ð´Ñ£Ð½Ñ?Ñ?, Ð¾Ñ?Ð»Ð¸Ñ?Ð°Ñ?Ñ?Ñ?Ñ? Ð²Ð°Ñ?Ñ? Ð¾Ñ?Ñ? Ð´Ñ?Ñ?Ð³Ð¸Ñ?Ñ? Ð¿Ð¾Ð»Ñ?Ð·Ð¾Ð²Ð°Ñ?ÐµÐ»ÐµÐ¹ Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/scn/torbutton.dtd b/scn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/scn/torbutton.dtd
+++ b/scn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sco/torbutton.dtd b/sco/torbutton.dtd
index 4349606..ba4a760 100644
--- a/sco/torbutton.dtd
+++ b/sco/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish ye fae ither Tor Brouser uisers">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/si/torbutton.dtd b/si/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/si/torbutton.dtd
+++ b/si/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/si_LK/torbutton.dtd b/si_LK/torbutton.dtd
index 17b27e9..9c81951 100644
--- a/si_LK/torbutton.dtd
+++ b/si_LK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "à¶?à¶±à·?à¶à·? Tor à¶¶à·?â??à¶»à·?à·?à·?à¶» à¶·à·?à·?à·?à¶à·? à¶?à¶»à¶±à·?à¶±à¶±à·?à¶?à·?à¶±à·? à¶?à¶¶ à·?à·?à¶±à·? à¶?à¶» à·?à¶¯à·?à¶±à·?à¶?à¶±à·?à¶±à·? à·?à·?à·?à·?à¶à¶» à·?à·?à¶±à·?à·? à¶?à¶»à¶±à·?à¶±">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sk/torbutton.dtd b/sk/torbutton.dtd
index 4827ebe..024fa59 100644
--- a/sk/torbutton.dtd
+++ b/sk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Level BezpeÄ?nosti">
 <!ENTITY torbutton.prefs.sec_low "NÃzky (pÃ´vodnÃ©)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "StrednÃ½-nÃzky">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "StrednÃ½-VysokÃ½">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "VysokÃ½">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "VlastnÃ© parametre">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sk_SK/torbutton.dtd b/sk_SK/torbutton.dtd
index 5c70433..3d195e1 100644
--- a/sk_SK/torbutton.dtd
+++ b/sk_SK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ZmeniÅ¥ detaily, ktorÃ© vÃ¡s odliÅ¡ujÃº od ostatnÃ½ch uÅ¾ÃvateÄ¾ov Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sl/torbutton.dtd b/sl/torbutton.dtd
index cfa202d..998263e 100644
--- a/sl/torbutton.dtd
+++ b/sl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sl_SI/torbutton.dtd b/sl_SI/torbutton.dtd
index 3758214..76651a8 100644
--- a/sl_SI/torbutton.dtd
+++ b/sl_SI/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Spremeni podatke, ki vas loÄ?ijo od drugih uporabnikov Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Varnostni nivo">
 <!ENTITY torbutton.prefs.sec_low "Nizek (privzeto)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Srednji - Nizek">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Srednji - Visok">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Visok">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Vrednosti po meri">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sn/torbutton.dtd b/sn/torbutton.dtd
index de1fdcd..463c96a 100644
--- a/sn/torbutton.dtd
+++ b/sn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/so/torbutton.dtd b/so/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/so/torbutton.dtd
+++ b/so/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/son/torbutton.dtd b/son/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/son/torbutton.dtd
+++ b/son/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sq/torbutton.dtd b/sq/torbutton.dtd
index 52af1d6..52454ae 100644
--- a/sq/torbutton.dtd
+++ b/sq/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ndryshojini hollÃ«sitÃ« qÃ« ju dallojnÃ« nga pÃ«rdoruesit e tjerÃ« tÃ« Shfletuesit Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveli i sigurisÃ«">
 <!ENTITY torbutton.prefs.sec_low "E ulÃ«t (me parazgjedhje)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mesatare-E ulÃ«t">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Mesatare-E lartÃ«">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "E lartÃ«">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Vlera tÃ« PÃ«rshtatura">
 <!ENTITY torbutton.circuit_display.title "Cirkuiti i Tor-it pÃ«r kÃ«tÃ« webfaqe">
+
diff --git a/sr/torbutton.dtd b/sr/torbutton.dtd
index 93a0e15..41f0498 100644
--- a/sr/torbutton.dtd
+++ b/sr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Promenite detalje koji vas razlikuju od drugih korisnika Tor pretrazivaca.">
 <!ENTITY torbutton.prefs.sec_caption "Ð?Ð¸Ð²Ð¾ Ð±ÐµÐ·Ð±ÐµÐ´Ð½Ð¾Ñ?Ñ?Ð¸">
 <!ENTITY torbutton.prefs.sec_low "Ð?Ð¸Ð·Ð°Ðº (Ð¿Ð¾Ð´Ñ?Ð°Ð·Ñ?Ð¼ÐµÐ²Ð°Ð½Ð¾)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ?ÐµÐ´Ñ?Ðµ-Ð½Ð¸Ð·Ð°Ðº">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð¡Ñ?ÐµÐ´Ñ?Ðµ-Ð²Ð¸Ñ?Ð¾Ðº">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð?Ð¸Ñ?Ð¾Ðº">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð?Ð°Ð¼ÐµÐ½Ñ?ÐºÐµ Ð²Ñ?ÐµÐ´Ð½Ð¾Ñ?Ñ?Ð¸">
 <!ENTITY torbutton.circuit_display.title "Ð¢Ð¾Ñ? Ñ?Ð¿Ð¾Ñ? Ð·Ð° Ð¾Ð²Ð°Ñ? Ñ?Ð°Ñ?Ñ?">
+
diff --git a/sr@latin/torbutton.dtd b/sr@latin/torbutton.dtd
index 2d5a9c8..f25b61c 100644
--- a/sr@latin/torbutton.dtd
+++ b/sr@latin/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/st/torbutton.dtd b/st/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/st/torbutton.dtd
+++ b/st/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/su/torbutton.dtd b/su/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/su/torbutton.dtd
+++ b/su/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sv/torbutton.dtd b/sv/torbutton.dtd
index c5d9a6d..d4de340 100644
--- a/sv/torbutton.dtd
+++ b/sv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ã?ndra detailjer som utmÃ¤rker dig ifrÃ¥n andra Tor Browser anvÃ¤ndare">
 <!ENTITY torbutton.prefs.sec_caption "SÃ¤kerhetsnivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "LÃ¥g (fÃ¶rvald)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lÃ¥g">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¶g">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¶g">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Anpassad nivÃ¥">
 <!ENTITY torbutton.circuit_display.title "Tor circuit fÃ¶r den hÃ¤r sajten">
+
diff --git a/sw/torbutton.dtd b/sw/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/sw/torbutton.dtd
+++ b/sw/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/szl/torbutton.dtd b/szl/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/szl/torbutton.dtd
+++ b/szl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ta/torbutton.dtd b/ta/torbutton.dtd
index 4297ddf..74c6a8d 100644
--- a/ta/torbutton.dtd
+++ b/ta/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à®¤à®©à®¿à®?à¯? à®¨à®¿à®²à¯?">
 <!ENTITY torbutton.prefs.sec_low "à®?à¯?à®±à¯?à®¨à¯?à®¤ (à®?à®¯à®²à¯?à®ªà¯?à®¨à®¿à®²à¯?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à®®à®¿à®¤à®®à®¾à®©">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à®¨à®?à¯?à®¤à¯?à®¤à®° à®?à®¯à®°à¯?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à®?à®¯à®°à¯?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à®µà®¿à®°à¯?à®ªà¯?à®ª à®?à®²à®¾à®?à¯?à®?à®¾à®°à®®à¯?">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/te/torbutton.dtd b/te/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/te/torbutton.dtd
+++ b/te/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/te_IN/torbutton.dtd b/te_IN/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/te_IN/torbutton.dtd
+++ b/te_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tg/torbutton.dtd b/tg/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/tg/torbutton.dtd
+++ b/tg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/th/torbutton.dtd b/th/torbutton.dtd
index 92368ec..3940337 100644
--- a/th/torbutton.dtd
+++ b/th/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à¸£à¸°à¸?à¸±à¸?à¸?à¸§à¸²à¸¡à¸?à¸¥à¸à¸?à¸ à¸±à¸¢">
 <!ENTITY torbutton.prefs.sec_low "à¸?à¹?à¸³ (à¸?à¹?à¸²à¹?à¸£à¸´à¹?à¸¡à¸?à¹?à¸?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à¸?à¸¥à¸²à¸?-à¸?à¹?à¸³">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à¸?à¸¥à¸²à¸?-à¸ªà¸¹à¸?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à¸ªà¸¹à¸?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à¸?à¹?à¸²à¸?à¸µà¹?à¸?à¸³à¸«à¸?à¸?à¹?à¸à¸?">
 <!ENTITY torbutton.circuit_display.title "à¸§à¸?à¸?à¸£ Tor à¸ªà¸³à¸«à¸£à¸±à¸?à¹?à¸?à¸?à¹?à¸?à¸µà¹?">
+
diff --git a/ti/torbutton.dtd b/ti/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ti/torbutton.dtd
+++ b/ti/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tk/torbutton.dtd b/tk/torbutton.dtd
index 223c02d..104bf3d 100644
--- a/tk/torbutton.dtd
+++ b/tk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tl_PH/torbutton.dtd b/tl_PH/torbutton.dtd
index 0477f93..6f15f73 100644
--- a/tl_PH/torbutton.dtd
+++ b/tl_PH/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tr/torbutton.dtd b/tr/torbutton.dtd
index 7950046..d0ab6ce 100644
--- a/tr/torbutton.dtd
+++ b/tr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "DiÄ?er Tor kullanÄ±cÄ±lardan sizi ayÄ±ran detaylarÄ± deÄ?iÅ?tir">
 <!ENTITY torbutton.prefs.sec_caption "GÃ¼venlik Seviyesi">
 <!ENTITY torbutton.prefs.sec_low "DÃ¼Å?Ã¼k (varsayÄ±lan)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Orta-DÃ¼Å?Ã¼k">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Orta-YÃ¼ksek">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "YÃ¼ksek">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ã?zel DeÄ?erler">
 <!ENTITY torbutton.circuit_display.title "Bu site iÃ§in Tor devresi">
+
diff --git a/ug@Arab/torbutton.dtd b/ug@Arab/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ug@Arab/torbutton.dtd
+++ b/ug@Arab/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/uk/torbutton.dtd b/uk/torbutton.dtd
index 80c808f..9aad41e 100644
--- a/uk/torbutton.dtd
+++ b/uk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð?Ð¼Ñ?Ð½Ð¸Ñ?Ð¸ Ð²Ñ?Ð´Ð¾Ð¼Ð¾Ñ?Ñ?Ñ?, Ñ?Ð¾ Ð²Ñ?Ð´Ñ?Ñ?Ð·Ð½Ñ?Ñ?Ñ?Ñ? Ð²Ð°Ñ? Ð²Ñ?Ð´ Ñ?Ð½Ñ?Ð¸Ñ? ÐºÐ¾Ñ?Ð¸Ñ?Ñ?Ñ?Ð²Ð°Ñ?Ñ?Ð² Ð¿ÐµÑ?ÐµÐ³Ð»Ñ?Ð´Ð°Ñ?Ð° Tor">
 <!ENTITY torbutton.prefs.sec_caption "Ð Ñ?Ð²ÐµÐ½Ñ? Ð±ÐµÐ·Ð¿ÐµÐºÐ¸">
 <!ENTITY torbutton.prefs.sec_low "Ð?Ð¸Ð·Ñ?ÐºÐ¸Ð¹ (Ð¿Ð¾ Ð·Ð°Ð¼Ð¾Ð²Ñ?Ñ?Ð²Ð°Ð½Ð½Ñ?)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð?Ð¸Ð¶Ñ?Ðµ Ñ?ÐµÑ?ÐµÐ´Ð½Ñ?Ð¾Ð³Ð¾">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð?Ð¸Ñ?Ðµ Ñ?ÐµÑ?ÐµÐ´Ð½Ñ?Ð¾Ð³Ð¾">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð?Ð¸Ñ?Ð¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð?ÐµÑ?Ñ?Ð°Ð½Ð´Ð°Ñ?Ñ?Ð½Ñ? Ð·Ð½Ð°Ñ?ÐµÐ½Ð½Ñ?">
 <!ENTITY torbutton.circuit_display.title "Ð¡Ñ?ÐµÐ¼Ð° Tor Ð´Ð»Ñ? Ñ?Ñ?Ð¾Ð³Ð¾ Ñ?Ð°Ð¹Ñ?Ñ?">
+
diff --git a/ur/torbutton.dtd b/ur/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ur/torbutton.dtd
+++ b/ur/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ur_PK/torbutton.dtd b/ur_PK/torbutton.dtd
index 63c9ff3..01b465d 100644
--- a/ur_PK/torbutton.dtd
+++ b/ur_PK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/uz/torbutton.dtd b/uz/torbutton.dtd
index a8d45a8..fceaae3 100644
--- a/uz/torbutton.dtd
+++ b/uz/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ve/torbutton.dtd b/ve/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ve/torbutton.dtd
+++ b/ve/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/vi/torbutton.dtd b/vi/torbutton.dtd
index 5378f43..cd3d3ce 100644
--- a/vi/torbutton.dtd
+++ b/vi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/wa/torbutton.dtd b/wa/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/wa/torbutton.dtd
+++ b/wa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/wo/torbutton.dtd b/wo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/wo/torbutton.dtd
+++ b/wo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/yo/torbutton.dtd b/yo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/yo/torbutton.dtd
+++ b/yo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zh_CN/torbutton.dtd b/zh_CN/torbutton.dtd
index 4ea94a8..dde7594 100644
--- a/zh_CN/torbutton.dtd
+++ b/zh_CN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "è¯·ä¿®æ?¹å?ºå?«ä½ ä¸?å?¶ä»? Tor æµ?è§?å?¨ç?¨æ?·ç??è¯¦ç»?ä¿¡æ?¯">
 <!ENTITY torbutton.prefs.sec_caption "å®?å?¨ç?çº§">
 <!ENTITY torbutton.prefs.sec_low "ä½?ï¼?é»?è®¤ï¼?">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸ä½?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸é«?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "è?ªå®?ä¹?">
 <!ENTITY torbutton.circuit_display.title "è¯¥ç«?ç?¹æ??ç?¨ç?? Tor çº¿è·¯">
+
diff --git a/zh_HK/torbutton.dtd b/zh_HK/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/zh_HK/torbutton.dtd
+++ b/zh_HK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zh_TW/torbutton.dtd b/zh_TW/torbutton.dtd
index 6e5b988..1b4929d 100644
--- a/zh_TW/torbutton.dtd
+++ b/zh_TW/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "è®?æ?´å??å??æ?¨è??å?¶ä»? Tor ç??è¦½å?¨ä½¿ç?¨è??ç??è©³ç´°è³?è¨?">
 <!ENTITY torbutton.prefs.sec_caption "å®?å?¨ç?ç´?">
 <!ENTITY torbutton.prefs.sec_low "ä½?(é ?è¨)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸-ä½?">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸-é«?">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«?">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "è?ªè¨?è¨å®?">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zu/torbutton.dtd b/zu/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/zu/torbutton.dtd
+++ b/zu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+

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