I use Opera, Safari, Chrome, and Firefox all for different things. Safari is the fastest and most secure, draws the least energy, and is my primary. But if I want to watch movies On-Line then Chrome works the best(although I periodically have to Force Quit it when obnoxious stuff takes over the program. If I want to save videos or music off of YOU-Tube, then fire fox is better. And if I want to get some news that some news services say I've exceeded their free news stories for the month, then sometimes I can see the story by launching Opera.