Designed from the ground up to be simple, fast, and always private, the Firefox Focus mobile app for Android doesn’t feature tabs and it’s free of any visual clutter that might get in your way when surfing the Internet from your mobile device. It comes built-in with an ad blocker that promises to block annoying ads. The Android version of the privacy-oriented Firefox Focus web browser comes with a few attractive features, among which we can mention an integrated ad tracker counter for those who are curious to know how many ads were blocked on a certain web page, support for disabling the tracker blocker, and a notification reminder.