[tbb-bugs] #27268 [Applications/Tor Browser]: preferences cleanup

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Aug 26 07:03:19 UTC 2018

#27268: preferences cleanup
 Reporter:  rzb                              |          Owner:  tbb-team
     Type:  defect                           |         Status:  new
 Priority:  Medium                           |      Milestone:
Component:  Applications/Tor Browser         |        Version:
 Severity:  Normal                           |     Resolution:
 Keywords:  ff60-esr, TorBrowserTeam201808R  |  Actual Points:
Parent ID:                                   |         Points:
 Reviewer:                                   |        Sponsor:

Comment (by gk):

 Replying to [comment:10 Thorin]:
 > > but if there is an issue with Hardware acceleration turned on for an
 unmodified Tor Browser
 > Sorry, forgot that TBB does not enable history (right?), so in this case
 re our PoC, it is not an issue

 Good. FWIW that is not related to HWA. I've observed this behavior years a
 ago, see: comment:8:ticket:11333. The PoC in
 https://bugzilla.mozilla.org/show_bug.cgi?id=884270 should still work.

 > > I am mostly confused about your comment
 > If you didn't mean just the HWA part, then IDK what else to say. If it's
 about flipped prefs vs RFP patches altering the FP, then see this comment:
 https://trac.torproject.org/projects/tor/ticket/27257#comment:5 . As for
 deprecated prefs as per his ticket topic, that should be self-explanatory
 (a source of 90+ most-likely-related TBB prefs that are deprecated with

 That comment makes sense. Yes, we need to look at the resistfingerprinting
 prefs closer during the clean-up. In general, there should not be any need
 for deviation on our side as we were involved with  patch upstreaming. If
 there is then we should think harder about the process because the goal is
 not to upstream patches for feature X and then still carrying on patches
 for X on our side.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27268#comment:11>
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