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Does anyone know what I should be checking if Firefox keeps on slowing down and stalling? I'm still using it over Chrome because I've got so many useful extensions but I think one or more of them are now causing problems with my browsing. Is there any error or event log I can check?

Also, I recently installed the Google Toolbar, has anyone had problems after installing it?

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migrated from Mar 3 '11 at 14:30

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There is an error console in Firefox; see menu tools/error consle. You could disable all extensions and then re-enable them one by one to see who's causing problems.

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Ctrl+Shift+J to bring up the error console. Also, there might be some properties that need to be turned on - in about:config - javascript.options.showInConsole – Mihailo Mar 3 '11 at 13:49

Have you checked the resource consumptions of firefox ? do you used to have a lot of tabs open ? I think it is a well known problem (memory leak) which can be alleviated

Whenever my firefox process reach over 500Mb to consume, I used to recycle it.

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I'd be hesitant to call that a "leak", it just seems to be a large cache issue. – Mehrdad May 21 '11 at 3:37

I've seen a snappy Firefox that comes up in 1 second on an SSD take around 30 seconds to come up because of some Gmail-related extension.

Some extensions (AdBlock, etc.) slow down browsing and everything, and it's not a Firefox issue.

Your solution?

Turn off ALL extensions, then enable them one by one, and see which one causes this.

If that didn't work, you might have a virus. :P

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