# firefox for android

Firefox for Android is Mozilla's browser for Android devices, powered by GeckoView and built on Android Components.

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## Why Switch to Firefox: Open Source, Ad Blocking, and Android Extensions

DevFeed: [Why Switch to Firefox: Open Source, Ad Blocking, and Android Extensions](<https://devfeed.tech/articles/how-to-firefox-25260.md>)

Original publisher: [Read original article](<https://kau.sh/blog/how-to-firefox/>)

Author: Kaushik Gopal

Published: 2025-07-18T00:00:00Z

Content type: opinion

Language: en

Sources: [Kaushik Gopal's Site](<https://devfeed.tech/sources/kaushik-gopal-s-site.md>)

Topics: [Firefox](<https://devfeed.tech/topics/firefox.md>), [uBlock Origin Filters](<https://devfeed.tech/topics/ublock-origin-filters.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>), [firefox for android](<https://devfeed.tech/topics/firefox-for-android.md>), [Firefox extension](<https://devfeed.tech/topics/firefox-extension.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [ads](<https://devfeed.tech/tags/ads.md>), [android](<https://devfeed.tech/tags/android.md>), [blocking](<https://devfeed.tech/tags/blocking.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [extensions](<https://devfeed.tech/tags/extensions.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [open-source](<https://devfeed.tech/tags/open-source.md>)

### AI overview

An opinionated guide encouraging readers to switch to Firefox, citing its open-source code, support for uBlock Origin, synchronization on Android, and mobile browser extensions.

### Source excerpt

Chrome finally pulled the trigger on the web's best ad-blocker, uBlock Origin. Now that Chrome has hobbled uBO, Firefox -- my beloved --1 is surging again. I want to do my part to convince you to switch to Firefox and show you how I use it. Why Firefox # Let's get through the important talking points, in case you need a quick copy paste to convince a friend. 100% open-source Un-enshittify the web Android users rejoice Customize to your heart's content 100% open-source ## This section can be quick. Here's a github link to the source code of the Firefox browser. You can clone the repo, pop open your favorite AI code assistant and start asking questions about your browser - the most important app you use. What libraries does their Android app use? libs.versions.toml boom! Also 8.11.1 on android gradle plugin? not bad Firefox. Their license allows you to fork and distribute alternative versions. Vibe code a whole new browser. Un-enshittify the web ## Most of the web today is enshittified with a cesspool of ads, popups, cookie notices, and tracking scripts. Our primary defense has been ad-blockers, with the most powerful being uBlock Origin. uBO relies on community-curated filter lists that play a cat-and-mouse game to zap known ads, trackers, and other digital sludge. But with Chrome controlling the web, Google followed through on its promise to kneecap uBO with Manifest V3, effectively blocking the full version from its extension store. Sure, there's uBlock Origin "Lite" now, which does the same thing, right? Nope: uBlock Origin Lite != uBlock Origin Filter lists update only when the extension updates no fetching up to date lists from servers (this is a big one!) No custom filters so no element picker which allows you to point and zap Many filters are dropped at conversion time due to MV3's limited filter syntax No strict-blocked pages No per-site switches No dynamic filtering No importing external lists Did you know, uBlock Origin works best on Firefox. Why not just use

## Leaving Mozilla

DevFeed: [Leaving Mozilla](<https://devfeed.tech/articles/leaving-mozilla-41249.md>)

Original publisher: [Read original article](<https://www.emilykager.com/writing/2021/02/10/mozilla.html>)

Published: 2021-02-10T18:23:05Z

Content type: opinion

Language: en

Sources: [Emily Kager](<https://devfeed.tech/sources/emily-kager.md>)

Topics: [Mozilla](<https://devfeed.tech/topics/mozilla.md>), [Firefox](<https://devfeed.tech/topics/firefox.md>), [firefox for android](<https://devfeed.tech/topics/firefox-for-android.md>), [Mobile](<https://devfeed.tech/topics/mobile.md>), [Java](<https://devfeed.tech/topics/java.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [career](<https://devfeed.tech/tags/career.md>), [community](<https://devfeed.tech/tags/community.md>), [experience](<https://devfeed.tech/tags/experience.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [firefox-for-android](<https://devfeed.tech/tags/firefox-for-android.md>), [growth](<https://devfeed.tech/tags/growth.md>), [leadership](<https://devfeed.tech/tags/leadership.md>), [mozilla](<https://devfeed.tech/tags/mozilla.md>), [oss](<https://devfeed.tech/tags/oss.md>), [project](<https://devfeed.tech/tags/project.md>), [team](<https://devfeed.tech/tags/team.md>), [work](<https://devfeed.tech/tags/work.md>), [writing](<https://devfeed.tech/tags/writing.md>)

### AI overview

A personal account of joining Mozilla as an intern and working on Firefox for Android. The author describes finding a supportive team and meaningful work, then leaving to pursue something new after burnout from sustained workload around a major browser rewrite.

### Source excerpt

I don't think any little girl grows up with the goal of "I want to be an OSS Android browser developer" and to be totally honest, even as an adult I just kind of fell into it. I first joined Mozilla as an intern during my change-career journey mainly because I had taken one Android class, knew some Java, and applied on a whim at the right time to hit the recruiter's inbox. Despite not actively seeking Mozilla or Android out, I immediately fell in love with the project and team and knew I had stumbled into a very special place. The problems were interesting, I had opportunities for leadership and growth from the start, and the people were kind, smart, and supportive.