http://spywareitdaiuyfo2sqb5vsg7mek5cjabdr73luhnda57t2hyuzg7yyd.onion/articles/surf.html
It was tested in conjunction with tabbed, another piece of software developed by the same people for use with surf, it adds support for tabs. From a privacy standpoint, this browser is an excellent choice. Surf requires proxychains to connect to Tor, as it only supports HTTP proxies, not SOCKS (which is what Tor uses).