Happened to me too! Thanks for posting so I know it's not just "me". You are right - most of the tabs wouldn't work (except my Tree and Person tabs). The only way I could navigate around is to use the pull down menu at the top under "View". I'm using FTM Mac 3 and when I checked for updates there was one I had not noticed. Once I downloaded that and converted my file to the updated version the tabs are now working again! Maybe that is something to check on!