While testing out the feature, Facebook has stated in the following quote on how it got a sizable amount of positive feedback over the course of several months, which is why the company decided to provide support for Tor browsers. However, the company is yet to tell us why it has not enabled the feature for iOS and Windows Mobile powered devices. May be it had something to do with the dominating operating system market share of the platform.
On Facebook’s blog post, it says that if you want to get down to using Tor for Facebook on your Android powered devices, then you can head to Google Play or the Orbot F-Droid repository and download Orbot: Proxy with Tor. After successfully installing Orbot, you can visit your Facebook’s ‘App Settings’ menu to enable the feature by using a new preference switch. Facebook has stated that it will be providing more and more updates so stay tuned for the latest news on ‘Facebook over Tor page’. Furthermore, if you want to get more information, just visit the ‘Tor on Android’ page.