Firefox will not shut down and I have to use the force quit option on my MAC to get it back. What can I do?
At almost every shutdown of Firefox it fails to completely shutdown and when I go to start it up again I must force quit to get it to completely shutdown.
The code says Firefox (not responding)
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Do you use the conventional "right-click on App Icon, Click quit"? Or do you open the menu, and click the power button?
Try the other way - see if you get the problem still.
Start Firefox in Safe Mode {web link} While you are in safe mode;
Type about:preferences#advanced<Enter> in the address bar.
Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.
Poke around safe web sites. Are there any problems?
Separate Issue; Your System Details shows;
Installed Plug-ins
Garmin Communicator Plug-in Version 4.0.2.2 Garmin Communicator Plug-in Version 4.1.0.0
Having more than one version of a program may cause issues.
You can check for issues caused by plugins and set all plugins to "Ask to Activate" on the "Firefox/Tools > Add-ons > Plugins" page (plugins are not affected by Firefox Safe Mode)