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Firefox constantly hanging/crashing - not resolved by SafeMode or reinstalling.


I am running Firefox on a MacBook, OS 10.6.8. I had actually given up using it for a while because I had gotten tired of the frequent freezes, but need to use a plug-in that is only available on Firefox for academic work. The freezes happen unpredictably; it might work fine for an hour or so with multiple tabs/windows open, then suddenly hang when I try to switch between one tab and another, or it might hang when I wake the computer from sleep. I get the spinning rainbow wheel, and while occasionally if I wait for a few minutes it will come back to life, most times eventually I have to Force Quit. I have uninstalled and reinstalled and tried running it in SafeMode, without improvement.

Additional System Details


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.56 Safari/537.17

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  • Top 10 Contributor
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10776 solutions 96959 answers

If you have submitted crash reports then please post the IDs of one or more crash reports that have this format:

  • bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the IDs of the submitted crash reports on the about:crashes page.

  • You can open the about:crashes page via the location bar, like you open a website.


Try a check for corrupted and duplicate fonts and other font issues: