Hello! Hopefully someone knows how to do this! I am a recent switcher and one of the things I used most on my other machine was firefox because of the tabs (love 'em!). Safari has tabs so I haven't bothered downloading firefox for mac but I haven't figured out how to turn on a warning when I go to close a window with multiple tabs still open. Is there a way to do this (other than download firefox) ?? Help would be greatly appreciated as I am starting to learn the hard way how often I depended on that warning :|