Remove extension change warning dialog in OS X Snow Leopard

One of the few annoying things about past versions of Mac OS X was the warning the OS tossed up every time you changed the extension on a file. I often times changed a .txt extension to .html, or added an extension to a file that didn’t have one. Boom – annoying warning message.

Thankfully, Apple has given us the option of turning these warning messages off via the Finder’s Preferences in Snow Leopard. Simply go to the menu bar and choose Finder>Preferences and un-check the Show warning before changing an extension option.