computer freezes when I go back on the degugged tab

[Xenos]

Sometimes, when I go back on the degugged tab, my computer freezes. And if that started, it will always be at the opening of this tab.
I do not know what has caused, but slows down even i7x8cpu.
It started about 2-3 versions ago.
Not always.
I do not know how else to describe it, but if there is a problem - so many people should have to say about it

[mattcoz]

I get this too, usually is accompanied by the memory usage of Firefox soaring way above 1GB.

[Sebastian Zartner]

I don't see this problem on my WinXP machine with 2 GB RAM. Do you have steps to reproduce that issue?

Sebastian