When I shut down firefox I keep getting the message:
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.
I have to log off and log back on to use this web browser again.
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.
I have to log off and log back on to use this web browser again.