[tbb-bugs] #25737 [Applications/Tor Browser]: Tor Browser's update check bypassed Tor once on macos, because of xpcproxy?

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#25737: Tor Browser's update check bypassed Tor once on macos, because of xpcproxy?
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 Reporter:  cypherpunks               |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Changes (by gk):

 * cc: mcs, brade (added)


Comment:

 What happens if you disable Tor Launcher from being started? Can you
 reproduce your issue then? You could start it once and disable it in the
 about:addons section. Or just set
 `extensions.torlauncher.prompt_at_startup` and
 `extensions.torlauncher.start_tor` to `false`?

 That should not leak anything as the proxy preferences are hardcoded in
 the browser to avoid exactly the scenario you describe.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25737#comment:9>
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