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when opng get message"firefox running,not responding" Task mgr shows nothing running.

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long time user-used to be able to have multiple windows and multiple tabs of firefox open at the same time. Now when I try to open firefox I get an error message "firefox already running,not responding" Task Master shows nothing is running nor even open not running. have tried to reboot several times.

long time user-used to be able to have multiple windows and multiple tabs of firefox open at the same time. Now when I try to open firefox I get an error message "firefox already running,not responding" Task Master shows nothing is running nor even open not running. have tried to reboot several times.

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Must be the "hang at exit" problem.

  1. Stop the Firefox process:
  2. Why Firefox may hang:
  3. Use Firefox Safe Mode to find a problem with an Extension or Plugin:


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