Private browsing mode is great for all sorts of things, but it isn't exactly the easiest to use—you have to open it manually, manually paste in any links you were viewing, and so on.
Inspired by this post on AddictiveTips, we went on a search for any extension that would make private browsing less of a pain—and here's what we found.
Firefox : Open in Private Browsing Mode (http://goo.gl/rkXi6)
Chrome : Ghost Incognito (http://goo.gl/OsizN)