[tbb-bugs] #26114 [Applications/Tor Browser]: Adapt to upstreamed AddonManager changes

[Tor Bug Tracker & Wiki]

#26114: Adapt to upstreamed AddonManager changes
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     Reporter:  gk                   |      Owner:  tbb-team
         Type:  task                 |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  ff60-esr, tbb-
     Severity:  Normal               |  fingerprinting
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
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 We upstreamed our patch to prevent content from accessing
 `navigator.AddonManager` in
 https://bugzilla.mozilla.org/show_bug.cgi?id=1384330. We need to adjust
 some preferences to pick this up for Tor Browser based on ESR60, namely:
 `privacy.resistFingerprinting.block_mozAddonManager` and
 `extensions.webextensions.restrictedDomains`. For the latter, see:
 https://bugzilla.mozilla.org/show_bug.cgi?id=1453988.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26114>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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