Running win8.1 64bit.
I've tried repeatedly to install Firefox 28, but the latest NIS makes it almost unusable:
Tabs freeze, right-click stops functioning, OS becomes unresponsive. There is no significant increase in CPU or memory use. I've tried running FF28 in safe mode, but that doesn't make any difference.
Running FF 27.0.1 runs without any problem at all.
Any advice?
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