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firefox tabs remain open in task manager

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I close tabs but my task manager shows they remain open.

I close tabs but my task manager shows they remain open.

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A screenshot showing the desktop and task manager showing the processes would help your case. I would also open Firefox in Safe Mode and then close or exit and check task manager again.

Helpful?

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The Firefox Task Manager (Shift+Esc) is more informative than the system one.

Helpful?

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