[Bug 66350] Re: Firefox uses high CPU for extended periods of time when spawning a new window with many tabs already open

[Kudzu9]

Seem to have same problem as you guys. 
 Firefox {(Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.12) Gecko/20080207 Ubuntu/7.10 (gutsy) Firefox/2.0.0.12} 
starts to suddenly take more & more of the cpu,  1-3x /day of online web sessions; if I catch it early enough, I can manually end the Ff sub-process taking 60-95%cpu:
 '/usr/lib/firefox/firefox-bin'    
which crashes Firefox; I can then restart Firefox. 
If I don't catch it within ~1-2 minutes or so this sub-process will take more& more cpu until system becomes locked & unresponsive. It resolves itself  2-5 minutes later, releasing the cpu & browser session can continue uninterrupted - until it happens again several minutes to several hours later :( 
Restoring or not restoring crashed session has no discernible effect on if/when it happens again, from a few minutes to (usually) a few hours later. I always  use a single Ff. window; I almost always have many (10-50) tabs open.Today it crashed itself for the first time during one if it's 'seizures'


** Attachment added: "Firefox Crash Report"
   http://launchpadlibrarian.net/12888993/_usr_lib_firefox_firefox-bin.1000.crash

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Firefox uses high CPU for extended periods of time when spawning a new window with many tabs already open
https://bugs.launchpad.net/bugs/66350
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