Firefox crashed whenever i was trying to log into Paypal or try to open my Yahoo Mail. Also Firefox would suddenly crash when visiting random websites. Not sure what was going wrong. It even prompted me to use Internet Explorer for a while.
Today i decided i need to sort this problem once for all. First i made sure Firefox is up to date. Second i went and disabled all the addons i installed in Firefox. I restarted Firefox and the crash went away. The point is one of the addon installed had caused the problem. I haven’t tried to figure out which addon caused the problem since i was anyway not using any of the addons.
Next time your Firefox crashes it could very well be due to the addons. You can easily figure out which addon causes the crash by disabling one by one and checking for the crash. Hope this information helps you to avoid a little frustration.