[tor-bugs] #6803 [Torbutton]: torbutton 1.4.6.1 "proxy server refusing connections" to check.tpo

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#6803: torbutton 1.4.6.1 "proxy server refusing connections" to check.tpo
-----------------------------+----------------------------------------------
 Reporter:  erinn            |          Owner:     
     Type:  defect           |         Status:  new
 Priority:  critical         |      Milestone:     
Component:  Torbutton        |        Version:     
 Keywords:  MikePerry201209  |         Parent:     
   Points:                   |   Actualpoints:  2  
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Changes (by mikeperry):

  * actualpoints:  => 2


Comment:

 Ok. Well, I traced this down to our nsIProtocolProxyFilter in Torbutton,
 which we were using to force our addon updates over Tor for Toggle mode
 users. Apparently in Firefox 15, it looks like they are now performing
 some kind of caching on the proxy argument to that filter, so that old
 proxy settings were getting passed through there from before we changed
 them based on the env var at startup.

 I have no idea why they would cache the variable on a per-domain basis,
 but simply commenting out the proxy service observer in torbutton was
 enough to fix it in for me. Since we don't officially support toggle
 anymore, this hack to disable the filter entirely should be good enough
 for now.

 However, HTTPS-Everywhere relies on the same filter API, so I guess we'll
 want to keep an eye on that.

 I should be able publish a Torbutton release with this fix today or
 tomorrow.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6803#comment:8>
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