
Another possible solution for Firefox crashes is by updating your extensions, especially after you’ve updated to the latest version of Firefox. Extensions are not updated automatically with the browser update because extensions are usually installed via third party providers.
For example if you’re using Firefox 3.6, you would want to go to the Tools menu and choose Add-ons.
When a new window opens, click on Extensions and then click on Find Updates at the bottom of the dialog box. If an outdated add-on has been causing the Firefox crash, then your problem will hopefully be fixed. Otherwise, you may want to disable any that are being troublesome.