surveyork writes "Opera Software released Opera browser 11 for desktop (Windows, Mac, Linux, etc). The main features are support for extensions similar to Chrome and Tab Stacks, Opera's version of tab management. The extension catalog is still small, with roughly 200 extensions, but steadily growing. The browser is very fast — Chrome-fast — and lightweight, with a new installer which is 30% smaller than the one in the previous version. Other enhancements include visual mouse gestures and better address field. There's no hardware acceleration yet, but it could be coming in a further dot release and benefit XP users as well as Mac, Linux and Windows 7/Vista users."