[tor-bugs] #30429 [Applications/Tor Browser]: Rebase Tor Browser patches for Firefox ESR 68

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#30429: Rebase Tor Browser patches for Firefox ESR 68
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  task                                 |         Status:
                                                 |  needs_review
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-9.0-must-nightly,                |  Actual Points:
  TorBrowserTeam201908R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by mcs):

 Here is a rebased patch for #13252:
 https://gitweb.torproject.org/user/brade/tor-
 browser.git/commit/?h=bug30429-pc-02&id=ba40aaeb975ed6680c79dca8f30b8285ec3578d4

 Even though Kathy and I are not finished with the updater patches yet, it
 would be good to include this patch in the nightly builds soon. It should
 be inserted into the sequence of patches after the #11641 patch (commit
 7521e628b071c61b65bcb9fa5e99c820369183c8 on acat's 30429+6 branch). Some
 notes about the rebased patch:

 1. We removed the code that copied files from distribution/preferences to
 the user's profile (XPIProvider.jsm). This was not needed even for ESR60.

 2. We removed the old Mac profile migration code. This is no longer needed
 because (a) everyone should have have upgraded (and therefore migrated)
 years ago and (b) Tor Browser 8.0 was a watershed release, so someone who
 does update a pre-8.0 Tor Browser to 9.x will have their profile migrated
 by the 8.0 code.

 acat and/or gk, please review.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30429#comment:29>
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