[tor-bugs] #21876 [Applications/Tor Browser]: e10s is not enabled on Linux (and probably OS X) by default in ESR 52 based nightlies

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#21876: e10s is not enabled on Linux (and probably OS X) by default in ESR 52 based
nightlies
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Major                                |     Resolution:
 Keywords:  ff52-esr, tbb-7.0-must-alpha,        |  Actual Points:
  TorBrowserTeam201704                           |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:7 gk]:
 > Replying to [comment:5 mcs]:
 > > Or, if we are going to keep using the e10srollout add-on, we should
 backport the fix from
 https://bugzilla.mozilla.org/show_bug.cgi?id=1348576.
 >
 > I think keeping that extension,
 Sooner or later mandatory system add-on would appear.
 > auditing it,
 Very good. (Treat it as a part of the browser.)
 > and making sure it does not get some out-of-bound Mozilla update is the
 way to go.
 Why don't you want system add-ons to update as any other add-ons?
 As for e10srollout, it stays at version 1.9 on esr channel, but could be
 changed if policy changed.
 > When backporting that fix we should, however,
 It's awaiting approval for esr52 and, as many distros are affected, will,
 probably, be approved.
 > make sure the `esr` policy applies to us.
 Are you going to switch the channel from 'release' to 'esr'?
 It would help transition from ff-esr to ff in the future.
 Note: Mozilla has transferred Vista and XP users to 'esr' channel in FF52.
 As for e10srollout, `esr` policy means no e10s on Windows XP.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21876#comment:8>
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