The book, it is marked.
Well, following one of the suggestions on this thread, I opened Tools, add-ons and uninstalled all those that were marked with the red exclamation marks (not compatible with v. 6.0.18) then clicked on the banner restart FF and it has been nothing but great so far. I was having all kinds of trouble with it being slow and locking up, but so far so good.
I’ve been having similar problems with sluggishness and glitchy mouse pointer the last few days in my WinXP.
I’ve reloaded the OS partition to previous versions and it happens still.
I’ve uninstalled new and recently upgraded programs, but none of them seemed to be the problem.
I think I finally isolated it to a recent upgrade to the telephone peripheral — MagicJack. It had an upgrade a few days ago, and the glitching started. Then, it had a second recent upgrade. Now, it won’t stay loaded. When it is loaded, I’ve notice it frequently running several ‘rundll.exe’ files when the glitching occurs.
It unloaded itself again this afternoon, and the recurring rundll’s stopped.
So, I am guessing that that is the problem I have.
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Had crashing problems with last version...now running FF 4.0 Beta 3.0 with no problems...