You can check to see what version of the Firefox OS software you have by looking under Device Information in the Settings app.
This article explains how to clear the browsing history, the cookies and stored data on the Firefox Browser on Firefox OS.
Firefox OS has a feature that lets you tell websites not to track your browsing behavior. Learn what tracking is, how the feature works and how to turn it on.
This article covers the basic features of Firefox OS - apps, messaging, contacts, music and more. It also links to articles that you'll want to explore later.