Favorites disappears from sidebar in Finder Running Mountain Lion 10.8.3 I find that after a recent reboot my Favorites have all disappeared from the sidebar in Finder.

Finder > Preferences > Sidebar shows a number of boxes against Favorite folders, but these can not be selected
Hold together Option+Command+esc and then relaunch "Finder" that will solve your problem instantly.  If the problem persists, please try reinstall Mac OS X by Command+R after rebooting.