With Firefox Focus do browsing finally like no one's watching you. Install the app, browse privately and erase browsing session data with a tap. Keep repeating further. What is Firefox Focus? Firefox Focus is a dedicated privacy browser developed for Android phone or tablet. Of course, it gives user tracking protection and content blocking. Which OS does Firefox Focus support? Supports both Android and iOS. How does Firefox Focus work? The app comes bundled with added privacy and performance. It allows the user to block known website trackers by … [Read more...] about Firefox Focus: The Privacy Browser For Android and iOS Mobile Devices.