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Since the last update last week keep getting this message "Firefox is already running but is not responding. To open a new window you must first close firefox or restart your system."

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  • Letzte Antwort von TonyE

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Since the last update last week keep getting this message "Firefox is already running but is not responding. To open a new window you must first close firefox or restart your system." But no matter what you do firefox wont open even if you close computer and leave for a few days even uninstalled it just keep getting same message even tho not showing in the task manager. What do I do?

Since the last update last week keep getting this message "Firefox is already running but is not responding. To open a new window you must first close firefox or restart your system." But no matter what you do firefox wont open even if you close computer and leave for a few days even uninstalled it just keep getting same message even tho not showing in the task manager. What do I do?

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There are several causes for that error, see the "Firefox is already running but is not responding" error - How to fix article for details.