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why does Firefox give this message when I do not have another program running "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."

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raydag2011
raydag2011
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Question why does Firefox give this message when I do not have another program running or another window open - "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." edit

Question why does Firefox give this message when I do not have another program running or another window open - "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." edit

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scoobidiver
scoobidiver
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See "Firefox is already running but is not responding" error - How to fix.

scoobidiver
scoobidiver
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Some users reported it was caused by Java. Reinstalling Java has fixed their problem.

cor-el
cor-el
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See also "Hang at exit":