Help! I am suffering a similar problem to those described in this thread (at least I think its similar...). Firefox is causing my PC to crash periodically. When this happens, none of the windows will respond, and even the task manager takes ages to shut the open Firefox windows. I thought this was a problem with my PC, but have seen several similar threads to this one describing problems like mine. I have the latest vesion of Firefox, and used to love it, but this is now a daily occurrence. I am seriously considering returning to IE . Does anyone know how to fix or mitigate this problem