Typing “File:///” will crash your Mac

By on February 3, 2013
submit to reddit

Programming bug in OS X Mountain Lion.


An interesting bug was recently discovered for Mac computers whereby if you type “File:///” without the quotation marks in your Mac running the latest OS X Mountain Lion, it will crash whatever application it’s written on.

A closer look shows the bug is inside Data Detectors, a feature that lets apps recognize dates, locations, and contact data, making it easy for you to save this information in your address book and calendar,” says Slashdot

Sure enough we tried this in our office iMac running Mountain Lion and typing these eight characters in Spotlight, Chrome, Safari and Mail crashed each of these applications. So far the problem only appears to be on Mountain Lion and doesn’t seem to affect OS X Snow Leopard or iOS devices. A small and (so far) harmless bug that will surely be fixed soon, but it goes to show that every company is susceptible to lazy programming.


From auditing to editing, I now test and analyze the latest gadgets and games instead of the latest financial statements. Both jobs are equally intense and rewarding. When I'm not burning up hardware in the name of science, you'll find me nuking in DOTA 2 or engineering in TF2.

Most Read
Most Commented
Win two Toshiba AT200 tablets

This festive season Toshiba has 2 tablets to giveaway.

Win an MSI FM2-A85XA-G65 Motherboard

Thanks to MSI we have an great AMD FM2 motherboard to giveaway.

Win a Nokia Asha 311

Thanks to Nokia we have a great entry-level smartphone to giveaway.