Open Source Mozilla Firefox Alternatives

    The best open source alternative to Mozilla Firefox is Pale Moon, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Mozilla Firefox and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Mozilla Firefox are Brave (Free, Open Source), Waterfox (Free, Open Source), Chromium (Free, Open Source) and Firefox Nightly (Free, Open Source).

    This page was last updated Jul 27, 2021

    1. A privacy-centric web browser, with an elegant UI and a robust built-in ad blocker, all designed with anonymity in mind. Forget ads and trackers. It sucks to install an ad-blocker manually. With our Dot Ad-Blocker, you'll never see a pesky ad again.
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    2. Dillo is a multi-platform graphical web browser known for its speed and small size. Dillo is written in C and C++. Dillo is based on FLTK2, the Fast Light Toolkit (statically-linked by default!).


    3. Liri is an open-source, cross-platform and material-design web browser. Material Design:

      Discontinued

      No recent activity, the project seems abandoned.

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    4. SmartCookieWeb is a fork of Lightning Browser.
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    5. Abrowser is Trisquel's version of Mozilla's popular web browser with the trademarked logos replaced. Replacing the trademarked logos gets rid of the trademark restriction that forbids selling the software, which would have effectively made it non-free software.
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      • FreeOpen Source
      • Mac
      • Linux
      • Firefox OS
      Servo is a modern, high-performance browser engine designed for both application and embedded use. Sponsored by Mozilla and written in the new systems programming language Rust, the Servo project aims to achieve better parallelism, security, modularity, and performance.
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      Mozilla Firefox Extended Support Release is a community-led project that allows organizations to benefit from the speed, flexibility and security of Firefox while getting the support they need.
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    6. Enhanced version of the stock browser. Featuring: • All basic browser features • Auto-hiding controls • Import/export bookmarks from/to SD card • Disable search suggestions • Custom search engines • Addons e.g "Tint Browser Adblock Addon"

      Discontinued

      The last update on Google Play was on January 5th, 2014 and the last commit GitHub was on May 29th, 2014.

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    7. Uzbl is a lightweight webkit browser following the UNIX philosophy - to do one thing and do it well.

      Discontinued

      Latest version was in 2016. See news: https://www.uzbl.org/

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    8. Sielo is a web browser, who provides all the basic functionalities, such as the navigation by tabs, the private navigation, the management of the bookmarks/history, etc. But, in addition, Sielo also has functionalities that make it special.

      Discontinued

      app discontinued

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    Showing 40 of 91 alternatives