[tor-bugs] #10419 [Firefox Patch Issues]: Can requests to 127.0.0.1 be used to fingerprint the browser?

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Jan 21 15:27:07 UTC 2014


#10419: Can requests to 127.0.0.1 be used to fingerprint the browser?
--------------------------------------+--------------------------------
     Reporter:  mikeperry             |      Owner:  mikeperry
         Type:  task                  |     Status:  new
     Priority:  major                 |  Milestone:
    Component:  Firefox Patch Issues  |    Version:
   Resolution:                        |   Keywords:  tbb-fingerprinting
Actual Points:                        |  Parent ID:
       Points:                        |
--------------------------------------+--------------------------------

Comment (by cypherpunks):

 (cypherpunks2 from from #10686 here)

 Copied from the old ticket: Why not set

 {{{
 user_pref("extensions.torbutton.no_proxies_on", "");
 user_pref("extensions.torbutton.saved.no_proxies_on", "");
 user_pref("network.proxy.no_proxies_on", "");
 }}}

 and just let tor reject the connections?

 I've grepped the 24.2.0 source tree for "127.0.0.1" and could find nothing
 to suggest that Firefox uses the address internally: The only occurrences
 of the string were inside of unit tests.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10419#comment:2>
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