User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:22.214.171.124) Gecko/2009042315 Firefox/3.0.10 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:126.96.36.199) Gecko/2009042315 Firefox/3.0.10 latest upload causes often cpu overload cpu use by firefox races up to more as 100% this while no extensive use is being made of firefox after quitting with save and restart cpu load use of fire fox is minimal Reproducible: Always Steps to Reproduce: 1.after a while of firefox inactivity and no use has been made of firefox the cpu overload by firefox suddenly happens Expected Results: the software should not have produced an cpu overload of more 100 % after a period of inactivity if wanted a print screen is available of the activity monitor during cpu overload
Created attachment 377842 [details] firefox-cpu-overload-printscreen-activitymonitor this is the printscreen of the activity monitor during a cpu overload of more as 100% by firefox during a period of inactivity
Do you get this in the Firefox safemode ? http://support.mozilla.com/en-US/kb/Safe+Mode
via private mail : "I think that i found the culprit as even in the safe mode of firefox the cpu started suddenly to run out of control with my usual windows open in firefox i started to switch on and off one by one the windows and I found out that the culprit url was the home page of myspace witout the "home" of myspace open firefox had 4,0 cpu use and with the "home" of myspace open the cpu use of firefox ran immediately up to allready 84 % so not having the "home" of myspace open in the background solves this cpu overload problem and saves temperature of my cpu and my fans do not need to work anymore in overdrive" I will mark this wfm, pages with many flash applets are using more CPU, that is not unusual.