I've always liked to have a browser in which each tab (or window, and then allow sharing between tabs) is isolated, like a separate profile in Firefox. No cooki

I've always liked to have a browser in which each tab (or window, and then allow sharing between tabs) is isolated, like a separate profile in Firefox. No cookie sharing, no cache sharing, and block all other tricks to communicate and find out what is running in other tabs or what other sites you're logged in to. In OSes there is more and more isolation between processes, why not at a browser level too. It improves security (no more CSRF, for starters) as well as privacy (sites can no longer track you as easily).