[tbb-bugs] #18777 [Tor Browser]: restore "black on black constrast fix" to ESR45

Tor Bug Tracker & Wiki blackhole at torproject.org
Sat Apr 9 18:41:56 UTC 2016

#18777: restore "black on black constrast fix" to ESR45
     Reporter:  arthuredelstein  |      Owner:  tbb-team
         Type:  defect           |     Status:  new
     Priority:  Medium           |  Milestone:
    Component:  Tor Browser      |    Version:
     Severity:  Normal           |   Keywords:
Actual Points:                   |  Parent ID:  #15197
       Points:                   |   Reviewer:
      Sponsor:                   |
 brade and mcs's patch to prevent exposing system colors to CSS and canvas
 was partially upstreamed, but there is another part that needs to be
 rebased to ESR45. Because this task is somewhat more complicated, I am
 creating this ticket.

 It would also be good to have a unit test under Tor Project's control that
 ensures that the upstreamed part and the non-upstreamed part are providing
 complete protection.

 The original patch in TBB/ESR38 is

 The part upstreamed to mozilla (and now in ESR45) is

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18777>
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