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Firefox no longer shuts down correctly. I keep getting the "Already running" message. I can go into Task Manager and End Process, but it just reoccurs the next time. The only thing diffferent from yesterday is the Windows Service Pack upgrade I loaded.

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Is this the problem? How do I fix it. I've already downloaded the latest Firefox upgrade and that didn't help.

Steve Frohock

Is this the problem? How do I fix it. I've already downloaded the latest Firefox upgrade and that didn't help. Steve Frohock

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Plug-in and tasks started by Firefox may continue after attempting to close Firefox. The "X" in the upper right-hand corner closes the Window (same as Ctrl+Shift+W) but even if it is the last Firefox window, it does not necessarily close Firefox .

The only proper way to exit Firefox is to use Exit through the File menu, not the "X" in the upper right corner of last Firefox window. In 4.0 that would be Alt+F then X

"Restartless Restart" extension for Firefox 4.0 only (2 KB download )

    https://addons.mozilla.org/firefox/addon/249342/

-- or -- "QuickRestart" extension (34 KB download)

       https://addons.mozilla.org/firefox/addon/3559/

use to close and restart Firefox after enabling or disabling an extension, switching to a new theme, or modifying configuration files, then you don't have to worry about delay or have to look in the Task Manager to see if Firefox is closed yet. Uses keyboard shortcut "Ctrl+Alt+R" or a file menu option.