[tor-bugs] #3542 [Torbutton]: Torbutton creates high load on FF5 startup

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#3542: Torbutton creates high load on FF5 startup
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 Reporter:  qbi                 |          Owner:  mikeperry     
     Type:  defect              |         Status:  new           
 Priority:  normal              |      Milestone:                
Component:  Torbutton           |        Version:  Torbutton: 1.4
 Keywords:  firefox5, cpu load  |         Parent:                
   Points:                      |   Actualpoints:                
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 I'm using TB 1.4.0 with FF5 (5.0+build1+nobinonly-0ubuntu0.11.04.2 from
 Ubuntu). Recently I noticed that the system load was very high when I
 start Firefox. So I have an empty session with an empty start page. When I
 start FF it takes lots of seconds until the FF window shows up. During
 this time the cpu load is ~100%.

 I did a git bisect today and found out that commit
 81624d96f2427bf2f1be7893d0bd08c1f9b38f61 causes the problem. Within the
 file {{{src/components/external-app-blocker.js}}} this was added: {{{ ||
 method == "getTypeFromURI"}}}. If I remove this and install TB, it starts
 without any huge load or large startup time.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3542>
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