I already know how to shutdown with a Mac, but this is different. I have a Firefox add-on called Autohide. The add-on says that if I want Firefox to open in "fullscreen" mode, then all I have to do is shut down while in full screen mode. Well, while in full screen mode, the menu bar, and dock cannot be accessed, so I am puzzled on how to shut down with Firefox running. Is there a way to shutdown a Mac without using the menu bar? I am confused on what to do. Thanks!