The Guardian Project, the group behind previous efforts to bring Tor and other privacy-preserving software to Android, is working on a Tor-friendly browser built on the desktop equivalent's codebase. This app, named Orfox, will replace its WebView-based predecessor Orweb.

Just like Orweb, Orfox will require the companion app Orbot to connect to Tor. Orfox sets itself apart by being a fully-featured standalone browser, with the basic trappings even privacy-conscious users would come to expect like bookmarks and tabbed browsing.
Why Orfox? Well, the Tor Browser Bundle for desktop users is built on Firefox 38.0 ESR. The Guardian Project, who is already accustomed to collaborations with The Tor Project, made the few necessary modifications to the desktop version's code to make it suitable for Android.
Read More