Crash Any App on Your Mac by Typing ‘File:///’

Posted on February 2, 2013 by


There’s a strange bug recently discovered in Mac OS X that will crash any app when you type the following into a text field: File:///

We’ve tested this on many apps including TextEdit, Safari, Chrome, Cyberduck, Tweetbot and more. An app will only crash when typed with a capital F, not a lowercase one. The bug affects all Macs running Mountain Lion, but not any previous versions of the OS.

There has been a bug report filed with Apple, but there is no information on when a fix will be released.

Comments (2)


  1. mrcolr says:

    what OS? my10.8.2 is not affected

  2. truth863 says:

    now why would i want to do this again?