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How Do I Force Quit Applications?


Firefox has been locking up lately. How do I quit it when it freezes? On PCs you can push Control-Alt-Delete, what is the Mac equivalent?
- Asked by Brian W. January 4th, 2011 (Updated: December 9th, 2014)


There is a Mac equivalent of Control-Alt-Delete. To force quit a frozen application, push Command, Option, and Escape at the same time. A window will appear with all currently running applications. Simply select the application that has locked up and click the force quit button.