There are five different versions of Firefox for Android (and a reason to use each one)

Published Oct 31, 2026, 3:01 PM EDT Bertel is a lifelong tech enthusiast with over a decade of experience writing thousands of articles about Android devices, Linux, and more. Before joining the How-To Geek team, Bertel wrote for the likes of MakeUseOf, MakeTechEasier, and Android Police—at the latter he wrote over 3,500 articles. He delights in helping others decide which tech to bring into their lives... and which tech to do without. Bertel graduated from the College of William and Mary in 2012 with degrees in History and Government. He has spent his entire career as a tech journalist covering Android, Linux, wearables, smart home devices, and more. Your phone comes with Google Chrome, but you may want to swap it for Mozilla Firefox for privacy concerns and Google’s near-monopoly over the web. Yet there are many versions of Firefox floating around, and while the main version is fine for most, it may not be the best option for you. I’ve installed each of these versions of Firefox. Here’s what you need to know. Mozilla Firefox The official version of Firefox directly from Mozilla I’ve been giving the standard version of Firefox a go ever since I bought my Motorola Razr Fold over the summer, and I’ve been pretty happy with it. Most websites render fine, the browser is fast, and it comes with privacy features that Chrome lacks. That said, these things are true for nearly all versions of Firefox, so why opt for the standard one? After all, with Mozilla‘s telemetry baked in, it is the least private of the bunch. Vanilla Firefox is the version you want if you like Mozilla‘s various built-in add-ons. While you can sync your Firefox account with many of the variants, standard Firefox is the only one that offers a built-in VPN. This version receives updates first, and it's ultimately the one you might as well use if you see little to no reason to seek out something else. Firefox Focus A minimalist browser that remembers very little Firefox Focus is a pared-down web browser designed to open the myriad links you are sent throughout the day without letting their cookies and trackers mingle with your primary browser. It wipes away cookies and any cached files every time you close the app. Firefox Focus works best as a default browser so that it manages all the links you open in chats. You can then open a separate browser with better tab management and extensions when you want to sit down and do actual work or research. Fennec The version of Firefox for open source purists Firefox may be a free and open source web browser, but you won't find it on F-Droid, the largest app store intended exclusively for free and open source Android apps. You will instead find Fennec. The name isn't immediately obvious, but a Fennec is a small breed of fox native to Western Africa — clever. Fennec is Firefox with Mozilla's telemetry removed. It does not come directly from Mozilla and is not affiliated with the Mozilla Foundation. You won't receive surveys, take part in experiments, or send Mozilla a daily ping. You can also use a few extensions that vanilla Firefox doesn't support. Importantly, it doesn’t default to the Google search engine. By and large, it’s otherwise the same. Iceraven For when your favorite desktop extensions aren't available on your phone While Fennec is the version of Firefox you download if you simply want to remove Mozilla's telemetry, Iceraven is the version for those who wish Firefox did just a bit more. A major aim of the project is to support a broader range of extensions than the mobile version of Firefox accepts. If you download extensions from the Chrome Web Store on your desktop browser and wish you could use them on your phone, Iceraven is for you. That said, Iceraven doesn't guarantee compatibility. Iceraven uses experimental libraries, and some extensions rely on APIs that simply won’t run on phones. So while you may have luck getting some additional extensions to work, you may also encounter breakage. Fortunately, the extensions recommended within the browser tend to work. Tor Browser The version you use when privacy is life or death The Tor Browser almost needs no introduction. It has entered the public consciousness alongside Signal as an app you download to keep your web behavior private. Yet it’s easy to overlook that a mobile version is available and that this version is based on Firefox. The Tor Browser is not affiliated with Mozilla, but it is based on the extended service release version of Firefox code. If you're familiar with the mobile version of Firefox, then the Tor Browser will look instantly familiar. The experience feels like using Firefox doused in a coat of purple paint, with all of your web pages taking longer to load. The latter is because Tor routes your traffic through at least three different locations, making your browsing not impossible to track, but significantly harder. This slow loading makes Tor difficult to recommend for everyday browsing, but it's useful in places or times when loading a certain website can land you in hot water. You can’t go wrong with any version of Firefox I’m currently using the primary version of Firefox. It may not be the most private, but Mozilla is not an organization that I'm concerned about having access to the small amounts of data it does collect. It's the kind of project I want to support, and I'm glad it continues to make its source code available and champion the mission of a free and open web.