Tab tearing. Okay, okay, Opera and the new macho on the block Chrome has this function, in fact Opera has been doing this stunt for ages. So what if Mozilla adds a feature to Firefox that's already in other competing browsers? This only shows that the makers of Firefox are really bent on giving us the best. It is not always about who gets there first, it's is about making a good browser. To be the best one needs to see the good in the competition and take and improve from it. Mozilla really knows how to play the game.