Mark Wilson writes: Back towards the end of 2014, Facebook unveiled a new .onion address that allowed Tor users to visit the social network securely. Following on from this, the company is now giving Android users the ability to browse the site using Tor and the Facebook app. Security, privacy and anonymity may be words readily associated with Tor, but few people would use them in the same sentence as Facebook. The social network says that there is increased demand for secure connections to Facebook from Tor-enabled browsers, hence spreading to the largest mobile platform. The news will make some mobile users happy, but there are currently no plans to migrate the feature from Android to iOS.