[tor-bugs] #13019 [Tor Browser]: New locale fingerprinting capabilities in FF31ESR

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#13019: New locale fingerprinting capabilities in FF31ESR
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     Reporter:           |      Owner:  arthuredelstein
  mikeperry              |     Status:  assigned
         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:17 gk]:
 > While investigating #15268 it turned out that even in 4.5-alpha-1 the OS
 locale is still leaking. The example URL
 http://www.fixtheworldproject.net/ shows a german date format on a german
 Windows 7 machine although I tested with an en-US Tor Browser.
 > We missed something in the patch, thus re-opening.

 Looks like I missed that some parts of the code require `en-US` and other
 parts `en_US`. :( Here is my fixup for the patch, that also simplifies the
 pref.
 https://github.com/arthuredelstein/tor-
 browser/commit/c2338da39ec3cde6189d4467dd80b7aeebd1b462
 Currently trying to get my gitian Windows build to work so I can test this
 on Windows.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13019#comment:20>
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