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How can I fix "Firefox is already running but is not responding"? Your site does not really tell me how to fix it.

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  • 166 have this problem
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  • Last reply by cor-el

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Almost daily, when accessing a link in Outlook Mail, I will get the message "Firefox is already running, but is not responding.....restart your computer or close the session" (not sure of the exact wording).

Can you provide me with a fix?

Modified by mrfixit99

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Make sure that you do not start Firefox with the -no-remote switch or have set the environment variable MOZ_NO_REMOTE=1 (Control Panel > System > Advanced > Environment variables).

See http://kb.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile