[tor-bugs] #33184 [Applications/Tor Browser]: Support for Fenix

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#33184: Support for Fenix
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 Reporter:  sisbell                           |          Owner:  gk
     Type:  enhancement                       |         Status:  assigned
 Priority:  Very High                         |      Milestone:
Component:  Applications/Tor Browser          |        Version:
 Severity:  Normal                            |     Resolution:
 Keywords:  tbb-mobile, TorBrowserTeam202005  |  Actual Points:
Parent ID:  #33659                            |         Points:
 Reviewer:                                    |        Sponsor:
                                              |  Sponsor58-must
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Comment (by acat):

 I noticed that there is the `EARLY_BETA_OR_EARLIER` define which controls
 several prefs, for example the one controlling whether `SharedArrayBuffer`
 is enabled or not (not implying that `SharedArrayBuffer` is still
 dangerous, just as an example). And by taking a look at the latest Fenix
 releases:

 {{{
 v4.1.0
 36.0.2
 75.0.20200309155231
 EARLY_BETA_OR_EARLIER=1
 has SharedArrayBuffer
 }}}
 {{{
 v4.2.0
 37.0.0
 75.0.20200322132212
 EARLY_BETA_OR_EARLIER=
 does not have SharedArrayBuffer
 }}}
 {{{
 v4.3.0
 38.0.0
 76.0.20200406152003
 EARLY_BETA_OR_EARLIER=1
 has SharedArrayBuffer
 }}}
 {{{
 v5.0.0
 39.0.1
 76.0.20200424000239
 EARLY_BETA_OR_EARLIER=
 does not have SharedArrayBuffer
 }}}

 I'm not sure if it's intended that there is one Fenix version with early
 beta and another with late beta alternatively, or it is a coincidence.
 This might not be an issue if they are going to move to gecko-release for
 Fenix release, but just mentioning it here just in case we want to take a
 look at these kind of issues. With some pinning tests like the
 `dom_enumeration` ones, but for `prefs` we should probably be able to
 catch these issues, so that might be a good idea to have for Fenix.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33184#comment:22>
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