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Firefox causes the CPU to race on starting on my PC and laptop.

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by ajm115834

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When I start Firefox (40.0.2 and before, ever since my upgrade to Windows 10), the CPU races for a few moments on both my PC and laptop. I see no slowdown in performance--just the racing fan.

When I start Firefox (40.0.2 and before, ever since my upgrade to Windows 10), the CPU races for a few moments on both my PC and laptop. I see no slowdown in performance--just the racing fan.

All Replies (4)

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Do you have Firefox in the Startup folder so that Firefox is launched as those devices are booted up?

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No. Firefox is not in the startup folder.

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Still races occasionally.

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Anyone? Just jump right in!