Opera as we all know is one of the best browsers for Ubuntu because its fast, easy-to-use and stable. The good news for everyone is that Opera 11 is finally released and has brought too many cool features with it like Tab Stacking, Extensions, Visual mouse gestures and many more. From customization point of view, Opera now supports many beautiful skins and setups. And it gets better, an enhanced address field makes it easy to stay safe on the Web. So we can say that Opera 11 is all you need for all your internet activity be it your regular browsing, online shopping, and everything.
Download :- Opera 11 
Install :- Its just a matter of 2 clicks. To install Opera 11 Ubuntu 10.10, just download the above file and double click it and install via Ubuntu Software Center. Upgrade is also possible for existing opera users from the same file given above. All you need to do is a double click 