Firefox refuses to start, saying that it's already running, must restart window in the end.
This error message shows up: "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."
This error message shows up:
"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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Please upgrade your browser to Firefox 8 and check