[tbb-bugs] #21432 [Applications/Tor Browser]: Make a plan on how to deploy e10s in Tor Browser

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#21432: Make a plan on how to deploy e10s in Tor Browser
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  task                                 |         Status:  new
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff52-esr, tbb-7.0-must,              |  Actual Points:
  TorBrowserTeam201703                           |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by gk):

 Just to note this here: e10s in its current form probably brings some
 fingerprinting risks with it. e.g. users of accessibility tools won't have
 e10s enabled on Windows and macOS at least. Windows XP users with D3D9
 support neither. mcs and brade found that `showModalDialog()` is not
 available when e10s is enabled etc. Not sure whether we can do anything
 about that and whether we should.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21432#comment:7>
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