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Re: [tor-bugs] #13019 [Tor Browser]: New locale fingerprinting capabilities in FF31ESR
#13019: New locale fingerprinting capabilities in FF31ESR
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Reporter: | Owner: arthuredelstein
mikeperry | Status: needs_revision
Type: defect | Milestone:
Priority: major | Version:
Component: Tor | Keywords: ff31-esr, tbb-fingerprinting,
Browser | TorBrowserTeam201503, tbb-4.5-alpha
Resolution: | Parent ID:
Actual Points: |
Points: |
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Comment (by arthuredelstein):
Replying to [comment:29 gk]:
> Setting `javascript.use_us_english_locale` to `false` does not change
anything wrt to the differing date formats (at least not on OS X nor on
Linux; I currently don't have an en-US Windows available to test).
I just tested it on OS X, and it is working for me. However, if you are
running Tor Browser from the command line, it is necessary to make sure
that the shell locale is set to something other than English.
I did the following:
{{{
bash-3.2$ locale
LANG="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_CTYPE="UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_ALL=
bash-3.2$ export LC_ALL="de_DE"
bash-3.2$ locale
LANG="en_US.UTF-8"
LC_COLLATE="de_DE"
LC_CTYPE="de_DE"
LC_MESSAGES="de_DE"
LC_MONETARY="de_DE"
LC_NUMERIC="de_DE"
LC_TIME="de_DE"
LC_ALL="de_DE"
bash-3.2$ ./mach run
0:00.42 /projects/torproject/tor-browser31/obj-x86_64-apple-
darwin13.4.0/dist/Nightly.app/Contents/MacOS/firefox -no-remote
-foreground
}}}
Then in the JavaScript console:
{{{
// set pref to true
new Date().toLocaleFormat()
--> "Thu Mar 26 10:31:21 2015"
// set pref to false
new Date().toLocaleFormat()
--> "Do 26 MÃr 10:31:38 2015"
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13019#comment:30>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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