[tor-bugs] #26401 [Applications/Tor Browser]: Rebase Orfox patches onto Tor Browser 8.0 for TBA

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#26401: Rebase Orfox patches onto Tor Browser 8.0 for TBA
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 Reporter:  sysrqb                            |          Owner:  tbb-team
     Type:  task                              |         Status:
                                              |  needs_revision
 Priority:  Very High                         |      Milestone:
Component:  Applications/Tor Browser          |        Version:
 Severity:  Normal                            |     Resolution:
 Keywords:  tbb-mobile, TorBrowserTeam201807  |  Actual Points:
Parent ID:  #26531                            |         Points:
 Reviewer:                                    |        Sponsor:
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Comment (by gk):

 One additional thing while I was thinking about our update setup: the app
 update URL and enabling the MAR signature and verification machine belong
 together but are dealt with by different means (once by an environment
 variable check (`TB_BUILD_WITH_UPDATER`) and the other time by an
 preprocessor directive (`#ifdef TOR_BROWSER_VERSION`). I think using once
 `TB_BUILD_WITH_UPDATER` and the other time `TOR_BROWSER_VERSION` is
 confusing. And if we really want to enable updates sometime in the future
 we'd need to deal with both as `TOR_BROWSER_VERSION` is very likely set in
 both cases: for builds with and without updating enabled.

 So, `TB_BUILD_WITH_UPDATER` (or something similar) should cover both the
 app update URL and the pieces in the  .mozconfig file.

 (Oh, and right now it seems we would need two builds if we'd ship an
 updating and a non-updating version. I wonder if we could design it in a
 way that we only needed some preference flip during the final packaging
 step to take care of that. Right I think we can if we always build with
 the update mechanism enabled but just make sure we don't publish update
 files/disable update checks per pref).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26401#comment:31>
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