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Firefox is already running

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  • 3 have this problem
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  • Last reply by kfd01567

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after creating a second User Profile I'm always getting "Firefox is already running" message if I try to open a HTML-File from the Filesystem by double-clicking it - default action for HTML-File is open. Looks like Windows (XP SP3) tries to start Firefox a second time instead of using the running instance. I assume file association is somehow wrong - maybe the DDE-Message?

after creating a second User Profile I'm always getting "Firefox is already running" message if I try to open a HTML-File from the Filesystem by double-clicking it - default action for HTML-File is open. Looks like Windows (XP SP3) tries to start Firefox a second time instead of using the running instance. I assume file association is somehow wrong - maybe the DDE-Message?

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If you can solv the problem with another Windows account (pls test create), I recommend the following solution.
http://flatsoft.blogspot.com/2012/01/firefox-is-already-running-not-yet.html