Putting aside my rant at being insulted by Mozilla, I hope this assessment of the app is more useful. Firefox is a generic browser, very similar to many others in the Play Store. Bluntly, its 'just another browser'. It IS fast, but is as featureless a browser as you will ever use. Most disappointing is the handful of addons; ALL are functions integrated by modern browsers. FF works, but so does my 'stock' browser. Chrome + others on Play have 100's of addons, lots of features and are still fast.