[tbb-bugs] #19528 [Applications/Tor Browser]: The build id stays the same with every Firefox update

Wed Aug 31 20:05:36 UTC 2016

#19528: The build id stays the same with every Firefox update
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 Reporter:  gk                                 |          Owner:  tbb-team
     Type:  defect                             |         Status:
                                               |  needs_review
 Priority:  Medium                             |      Milestone:
Component:  Applications/Tor Browser           |        Version:
 Severity:  Normal                             |     Resolution:
 Keywords:  tbb-gitian, TorBrowserTeam201608R  |  Actual Points:
Parent ID:                                     |         Points:
 Reviewer:                                     |        Sponsor:
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Comment (by mcs):

 Replying to [comment:27 boklm]:
 > A possible issue is that the buildid can be accessed with
 `navigator.buildID`, which can maybe help for fingerprinting:
 > https://developer.mozilla.org/en-US/docs/Web/API/Navigator/buildID

 We could set avoid that problem bhy setting general.buildID.override to a
 constant value such as 20000101000000 (see
 https://bugzilla.mozilla.org/show_bug.cgi?id=417994).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19528#comment:28>
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