[tor-bugs] #34344 [Applications/Tor Browser]: Can Firefox's background connections help us detect interference?

[Tor Bug Tracker & Wiki]

#34344: Can Firefox's background connections help us detect interference?
------------------------------------------+--------------------------------
     Reporter:  sysrqb                    |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
                                          |  TorBrowserTeam202009
Actual Points:                            |  Parent ID:  #31284
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+--------------------------------
 Firefox connects to pre-defined URL for testing if it is behind a captive
 portal. Tor Browser disables that (#21790).

 Can any of Firefox's background connections be used as a way of probing
 the local network (or ISP) for network interference? If we use them, how
 can we blend in with Firefox?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/34344>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online