Dec 14, 2012

How-To Geek: How to Fix the “Firefox Is Already Running” Error

How-To Geek
Tech Help from your Friendly How-To Geek
How to Fix the "Firefox Is Already Running" Error
Dec 14th 2012, 11:00


The "Firefox is already running, but is not responding" error has haunted Firefox users for years. You don't have to restart your computer when you see this error – you can usually fix it with a quick trip to the Task Manager.

This error occurs when Firefox is closed but is still running in the background. Firefox is either in the process of closing or is frozen and hasn't quit properly. In rare situations, there may be a problem with your profile.

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