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Firefox will not close! Cmd+Q does nothing.

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  • 2 have this problem
  • 127 views
  • Last reply by cor-el

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I cannot close Firefox on my Macbook. This is a new problem. Macos Sierra 10.12.2 (16C67). Firefox Version 51.0.1 Build ID 20170125094131 I have to restart the machine . . .

I cannot close Firefox on my Macbook. This is a new problem. Macos Sierra 10.12.2 (16C67). Firefox Version 51.0.1 Build ID 20170125094131 I have to restart the machine . . .

Chosen solution

See also:

  • Open Apple Menu and select "Force Quit"
  • Applications -> Utilities -> Activity Monitor
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Quit Firefox {web link} Quit Firefox provides statusbar and Toolbar buttons to quickly shut down Firefox. It is especially useful for laptop users.


Restart {web link} "Restart" menu and button, with configurable shortcut key.

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Chosen Solution

See also:

  • Open Apple Menu and select "Force Quit"
  • Applications -> Utilities -> Activity Monitor