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[tor-bugs] #24263 [Applications/Tor Browser]: Tor Browser 7.0.9 on Debian doesn't run background scripts from Web Extensions



#24263: Tor Browser 7.0.9 on Debian doesn't run background scripts from Web
Extensions
------------------------------------------+----------------------
     Reporter:  sajolida                  |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+----------------------
 While doing some last minute tests before the release of the port of the
 Tails ISO image verification extension to Web Extensions we realized that
 it was not working on Debian while it is working on Tails and Windows.

 Investigating this further we think that the background scripts of Web
 Extensions are not run correctly in Tor Browser 7.0.9 on Debian. For
 example, running the dummy extension described in
 https://trac.torproject.org/projects/tor/ticket/21270 leads to a ping in
 the console on both Tor Browser 7.0.8 in Windows and Tor Browser 7.0.6 in
 Tails but not on Tor Browser 7.0.9 in Debian. I'm sorry I'm comparing
 different version of Tor Browser on different OSes so I can't tell if it's
 OS-specific or version-specific... Note that they were all in "low"
 security in the slider.

 Here is the code of the dummy extension I used to do the tests, inspired
 from #21270:

 {{{
 $ cat ping/manifest.json
 {
   "manifest_version": 2,
   "name": "Ping Test",
   "version": "1.0",
   "description": "Tiny extension which pings the console from a background
 script.",
   "background": {
     "scripts": [ "ping.js" ]
   }
 }

 $ cat ping/ping.js
 console.log('ping');
 }}}

 The procedure to test it is:

 1. Start a fresh Tor Browser.
 2. Press Ctrl+Shift+J to open the JavaScript console.
 3. Visit about:debugging and load manifest.json as a temporary add-on.

 The output of the console in each case is:

 Debian: 7.0.9 (based on Mozilla Firefox 52.4.1) (64-bit)

 {{{
 1510597075800   addons.webextension.{73a6fe31-595d-460b-a920-fcc0f8843232}
 WARN    Loading extension '{73a6fe31-595d-460b-a920-fcc0f8843232}':
 Reading manifest: Error processing permissions.1: Unknown permission
 "privacy"
 1510597075800   addons.webextension.{73a6fe31-595d-460b-a920-fcc0f8843232}
 WARN    Loading extension '{73a6fe31-595d-460b-a920-fcc0f8843232}':
 Reading manifest: Error processing permissions.4: Unknown permission
 "unlimitedStorage"
 1510597075800   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Loading extension 'https-everywhere-eff@xxxxxxx': Reading
 manifest: Error processing devtools_page: An unexpected property was found
 in the WebExtension manifest.
 Tor NOTICE: Bootstrapped 85%: Finishing handshake with first hop
 1510597076000   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Please specify whether you want browser_style or not in your
 browser_action options.
 Tor NOTICE: Bootstrapped 90%: Establishing a Tor circuit
 Unchecked lastError value: Error: Could not establish connection.
 Receiving end does not exist.  ExtensionCommon.jsm:265
 Tor NOTICE: new bridge descriptor 'potagerbis' (fresh):
 $8D31A74671EACA6B3865DDBD6A5DD70D7F6A24F6~potagerbis at 91.194.60.100
 Tor NOTICE: Tor has successfully opened a circuit. Looks like client
 functionality is working.
 Tor NOTICE: Bootstrapped 100%: Done
 [11-13 18:18:05] Torbutton NOTE: Initializing security-prefs.js
 [11-13 18:18:05] Torbutton NOTE: security-prefs.js initialization complete
 Tor NOTICE: New control connection opened from 127.0.0.1.
 [11-13 18:18:06] Torbutton WARN: no SOCKS credentials found for current
 document.
 Key event not available on some keyboard layouts: key=“r”
 modifiers=“accel,alt” id=“toggleReaderMode”  browser.xul
 Key event not available on GTK2: key=“u” modifiers=“accel shift” id
 =“torbutton-new-identity-key”  browser.xul
 Key event not available on some keyboard layouts: key=“i”
 modifiers=“accel,alt,shift” id=“key_browserToolbox”  browser.xul
 [11-13 18:18:26] Torbutton WARN: no SOCKS credentials found for current
 document.
 [11-13 18:18:43] Torbutton WARN: no SOCKS credentials found for current
 document.
 JSON.parse: unexpected end of data at line 1 column 1 of the JSON data
 DirectoryLinksProvider.jsm:391
 [11-13 18:18:49] Torbutton WARN: no SOCKS credentials found for current
 document.
 [11-13 18:19:17] Torbutton WARN: no SOCKS credentials found for current
 document.
 }}}

 Windows: 7.0.8 (based on Mozilla Firefox 52.4.1) (32-bit)

 {{{
 [11-13 18:21:01] TorLauncher NOTE: failed to open authenticated
 connection:  [scrubbed]
 1510597261900   addons.webextension.{73a6fe31-595d-460b-a920-fcc0f8843232}
 WARN    Loading extension '{73a6fe31-595d-460b-a920-fcc0f8843232}':
 Reading manifest: Error processing permissions.1: Unknown permission
 "privacy"
 1510597262000   addons.webextension.{73a6fe31-595d-460b-a920-fcc0f8843232}
 WARN    Loading extension '{73a6fe31-595d-460b-a920-fcc0f8843232}':
 Reading manifest: Error processing permissions.4: Unknown permission
 "unlimitedStorage"
 1510597272200   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Loading extension 'https-everywhere-eff@xxxxxxx': Reading
 manifest: Error processing devtools_page: An unexpected property was found
 in the WebExtension manifest.
 1510597272600   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Please specify whether you want browser_style or not in your
 browser_action options.
 Tor NOTICE: Bootstrapped 85%: Finishing handshake with first hop
 Tor NOTICE: Bootstrapped 90%: Establishing a Tor circuit
 Tor NOTICE: Tor has successfully opened a circuit. Looks like client
 functionality is working.
 Tor NOTICE: Bootstrapped 100%: Done
 Unchecked lastError value: Error: Could not establish connection.
 Receiving end does not exist.  ExtensionCommon.jsm:265
 [11-13 18:21:18] Torbutton NOTE: Initializing security-prefs.js
 [11-13 18:21:18] Torbutton NOTE: security-prefs.js initialization complete
 Tor NOTICE: New control connection opened from 127.0.0.1.
 [11-13 18:21:19] Torbutton WARN: no SOCKS credentials found for current
 document.
 [11-13 18:21:20] Torbutton WARN: no SOCKS credentials found for current
 document.
 Key event not available on some keyboard layouts: key=<93>r<94>
 modifiers=<93>accel,alt<94> id=<93>toggleReaderMode<94>  browser.xul
 Key event not available on GTK2: key=<93>u<94> modifiers=<93>accel
 shift<94> id=<93>torbutton-new-identity-key<94>  browser.xul
 Key event not available on some keyboard layouts: key=<93>i<94>
 modifiers=<93>accel,alt,shift<94> id=<93>key_browserToolbox<94>
 browser.xul
 [11-13 18:21:33] Torbutton WARN: no SOCKS credentials found for current
 document.
 ping  ping.js:1:1
 }}}

 Tails: 7.0.6 (based on Mozilla Firefox 52.4.0) (64-bit)

 {{{
 DEPRECATION WARNING: Search service falling back to synchronous
 initialization. This is generally the consequence of an add-on using a
 deprecated search service API.
 You may find more details about this deprecation at:
 https://developer.mozilla.org/en-
 US/docs/XPCOM_Interface_Reference/nsIBrowserSearchService#async_warning
 jar:file:///usr/local/lib/tor-
 browser/omni.ja!/components/nsSearchService.js 2702
 SRCH_SVC__ensureInitialized
 jar:file:///usr/local/lib/tor-
 browser/omni.ja!/components/nsSearchService.js 4003
 SRCH_SVC_getEngineByName
 mozilla.cfg 4 null
   Deprecated.jsm:79
 1510598479300   addons.xpi-utils        ERROR   Unable to read anything
 useful from the database  Log.jsm:753
 1510598480100   addons.webextension.<unknown>   WARN    Loading extension
 'null': Reading manifest: Error processing permissions.1: Unknown
 permission "privacy"
 1510598482300   addons.webextension.<unknown>   WARN    Loading extension
 'null': Reading manifest: Error processing devtools_page: An unexpected
 property was found in the WebExtension manifest.
 Warning: attempting to write 4232 bytes to preference
 extensions.bootstrappedAddons. This is bad for general performance and
 memory usage. Such an amount of data should rather be written to an
 external file. This preference will not be sent to any content processes.
 1510598483000   addons.xpi      WARN    Add-on https-everywhere-
 eff@xxxxxxx is missing bootstrap method install
 Warning: attempting to write 4484 bytes to preference
 extensions.bootstrappedAddons. This is bad for general performance and
 memory usage. Such an amount of data should rather be written to an
 external file. This preference will not be sent to any content processes.
 Bootstrapped manifest not allowed to use 'component' directive.
 chrome.manifest:60
 Bootstrapped manifest not allowed to use 'contract' directive.
 chrome.manifest:61
 Bootstrapped manifest not allowed to use 'category' directive.
 chrome.manifest:63
 Bootstrapped manifest not allowed to use 'overlay' directive.
 chrome.manifest:68
 Bootstrapped manifest not allowed to use 'overlay' directive.
 chrome.manifest:69
 Bootstrapped manifest not allowed to use 'style' directive.
 chrome.manifest:71
 Bootstrapped manifest not allowed to use 'component' directive.
 chrome.manifest:74
 Bootstrapped manifest not allowed to use 'contract' directive.
 chrome.manifest:75
 Bootstrapped manifest not allowed to use 'category' directive.
 chrome.manifest:76
 1510598486500   addons.webextension.{73a6fe31-595d-460b-a920-fcc0f8843232}
 WARN    Loading extension '{73a6fe31-595d-460b-a920-fcc0f8843232}':
 Reading manifest: Error processing permissions.1: Unknown permission
 "privacy"
 1510598486600   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Loading extension 'https-everywhere-eff@xxxxxxx': Reading
 manifest: Error processing devtools_page: An unexpected property was found
 in the WebExtension manifest.
 1510598486800   addons.webextension.https-everywhere-eff@xxxxxxx
 WARN    Please specify whether you want browser_style or not in your
 browser_action options.
 SyntaxError: The URI is malformed.  (unknown)
 [11-13 18:41:32] Torbutton NOTE: Initializing security-prefs.js
 [11-13 18:41:32] Torbutton NOTE: security-prefs.js initialization complete
 SyntaxError: The URI is malformed.  (unknown)
 Key event not available on some keyboard layouts: key=“r”
 modifiers=“accel,alt” id=“toggleReaderMode”  browser.xul
 Key event not available on GTK2: key=“u” modifiers=“accel shift” id
 =“torbutton-new-identity-key”  browser.xul
 Key event not available on some keyboard layouts: key=“i”
 modifiers=“accel,alt,shift” id=“key_browserToolbox”  browser.xul
 [11-13 18:41:47] Torbutton WARN: no SOCKS credentials found for current
 document.
 Unix error 2 during operation open on file /home/amnesia/.tor-
 browser/profile.default/directoryLinks.json (No such file or directory)
 DirectoryLinksProvider.jsm:402
 [11-13 18:42:06] Torbutton WARN: no SOCKS credentials found for current
 document.
 Warning: attempting to write 4730 bytes to preference
 extensions.bootstrappedAddons. This is bad for general performance and
 memory usage. Such an amount of data should rather be written to an
 external file. This preference will not be sent to any content processes.
 ping  ping.js:1:1
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24263>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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