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How to start Firefox if you see an error message, "Firefox is already running, but is not responding" or, on Mac OS X, "A copy of Firefox is already open".
This article explains what to do if the Firefox window doesn't open or you get an error message when you try to start Firefox.
How to fix the error ''Your Firefox profile cannot be loaded. It may be missing or inaccessible'' so that you can start and run Firefox.
Running Windows as Administrator with Launcher Process enabled in Firefox causes Drag and Drop errors - How to FixLearn how to fix drag-and-drop errors when running Windows as an Administrator with UAC disabled and the Launcher Process enabled.
Policy support for Firefox is implemented using Group Policy.
Find solutions to Firefox issues like crashing, not starting, slowness and websites not loading.
The lobby allows you to preview the room and any users who might already be in the room. Learn more.
How to configure your add-on to run on Firefox for Enterprise without having to sign it.