[tor-bugs] #22899 [Applications/Tor Browser Sandbox]: `about:addons`'s "Get Addons" pane is unsafe and should be treated as such.

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#22899: `about:addons`'s "Get Addons" pane is unsafe and should be treated as such.
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     Reporter:  yawning                           |      Owner:  yawning
         Type:  defect                            |     Status:  new
     Priority:  Medium                            |  Milestone:
    Component:  Applications/Tor Browser Sandbox  |    Version:
     Severity:  Normal                            |   Keywords:
Actual Points:                                    |  Parent ID:
       Points:                                    |   Reviewer:
      Sponsor:                                    |
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 https://github.com/mozilla/addons-frontend/issues/2785

 > Right now the about:addons page loads an iFrame with content hosted on a
 Mozilla
 > website ("The Discovery Pane"). This page contains Google Analytics.
 Because we
 > don't allow add-ons to run on about:* pages, add-ons that would block GA
 don't
 > work here.

 It appears that they are making this DNT based, which is entirely
 inadequate as any form of user tracking should be explicitly opt-in.  My
 plan unless people tell me otherwise is to totally reject requests to
 `discovery.addons.mozilla.org` unless `Modifiable Extensions` is enabled.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22899>
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