Private browsing mode is a new feature you can find on all current web browsers. In this mode your browsing activity will not be stored on your computer.
But Opera (10.5) has a new private browsing feature that the other browsers currently missing. In Opera you can open a site in private browsing mode in a new tab while you are in normal browsing mode.
1. To open a private browsing in tabs: Right click on tab’s “+” icon and select New Private Tab. Private tab got a lock like icon at the right side of the tab icon.
2. To open a private browsing window: Click on File menu, then select New Private Window. The private window is red colored. Any tab opened in the private window is a private tab.
Opera (10.5) is said to be the fastest browser on the earth and fully supports Windows 7 new feature Aero and Jump list. Interested users can download it from Opera website.