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Question by Ollie88: How can you tell which firefox window is hogging up the cpu?
Firefox often starts consuming 100% of CPU time slows down the computer. Close windows until you find the right window helps. Is there any way to tell which window it is that with the CPU?
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Answer by Jeez
Maybe you should try reinstalling Firefox
Alternatively you could download and run the free ‘Process Lasso’ which throttles back any process which is trying to hog all the CPU resource. It also keeps a log of its actions so you should be able to see which process was the culprit.
http://www.bitsum.com/prolasso.php
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Not really, I think. The whole Firefox runs as one process, no matter how many windows are open. All resources are shared. That’s why if you kill Firefox (“end application now”), all its windows disappear.
(Are you using 3.5.4 by the way? If not, update)
Perhaps in future they will adapt the solution that Google came up with in Chrome, where every tab is a separate process and you can kill it easily if it misbehaves.
If that’s an important feature for you, you might consider switching to Chrome, or one of its derivatives such as SRWare Iron (which is even better).
Other than that, all you can really do is just guessing. The offenders are typically javascript-heavy websites, or “wise” websites, complicated websites with multiple types of contents on them (such as MySpace).
Websites that display flash ads would be among my primary suspects as well. Video websites, all websites that make use of plug-ins.
If I’m wrong and there is some smarter way, I’d be glad to hear about it myself. I know how frustrating it can be sometimes