In article , Steve wrote:
In article ,
says...

I have an Athlon 2, x4 620 quad core processor system on\
Asus M4A78 motherboard.

When I run firefox 3.5.5 or 3.5.6 and refresh several tabs in
rapid succession, it freezes the box unde xp sp3.
What happens is task manager - performance tab shows one
of cores going upto 100% of CPU useage, mouse freezes, keyboard
is dead and disk stops flashing every couple of seconds like it
normally does under windows. System is totally dead and needs
to be rebooted. Anyboyd knows anything about it?

What happens when you run Firefox in safe mode?

Well, I did not try it yet. Some people suggested doing it.
I am just not sure what does it achieve.
Right now I disabled all the addons except of imacros,
cause that is the one I need the worst and never had a problem
with it on a single core system.

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