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Firefox does not start at all, cpu usage is 100%

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I have tried installing different versions of Firefox, but all of them have the same issue - the browser does not start at all, no error messages, cpu usage is 100% in task manager, so have to shut it down there.

I have tried installing different versions of Firefox, but all of them have the same issue - the browser does not start at all, no error messages, cpu usage is 100% in task manager, so have to shut it down there.