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Firefox 4.0 uses 50 - 100% CPU

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Update to Firefox 4.0. Firefox now using 50-100% CPU almost all the time. Browser cannot handle more than a couple open tabs. Browser freezes, hangs, etc. Only solution to force quite the program and restart.

Update to Firefox 4.0. Firefox now using 50-100% CPU almost all the time. Browser cannot handle more than a couple open tabs. Browser freezes, hangs, etc. Only solution to force quite the program and restart.

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