I am running Firefox 12 on a Macbook Pro, and it keeps going up to 99% CPU usage, I can hear my computer revving up and feel it getting hot. The previous version did this as well.
I don't have any add ons and only the basics Flash etc. extensions; I have a Java 2 extension but it is disabled. I don't want to damage my Macbook Pro. I stop and restart Firefox, empty the cache etc but it keeps happening.
Does anyone have an idea why this is happening and how to fix it?