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. The Dissenter web browser is built for The People, not advertisers. Block Big Tech ads and trackers by default. Discover a comment section on every URL online. Welcome to the free speech internet.
    2. Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation.
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      Basilisk vs Mozilla Firefox opinions
      Almost everyone thinks Basilisk is a great alternative to Mozilla Firefox.
      SeanDFroszt Basilisk is what Firefox always was and still should be before they ruined it by trying to either be Google or kiss Google's butt by trying to be like them with WebExtensions and no support for XUL or *real* customization. Highly recommended, along with Waterfox or Pale Moon, this makes the third of the REAL "Mozilla" triumvirate.
      Positive comment over 3 years ago

      4
      soulriser It's faster and more stable.
      Positive comment over 3 years ago

      0


    3. Links is a text mode web browser, released under GPL. Links2 has the ability to display graphics.
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      Most users think Links is a great alternative to Mozilla Firefox.
    4. Kiwi Browser is made to read news, watch videos, movie trailers, listen to music, without annoyances. Browse in peace.
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    5. One of the smallest, fastest Android web browsers around. It is a high-performance small-sized Internet browser built for those who don't want the cumbersome size of Firefox or Chromium. It is based off the Android WebKit Engine.
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    6. K-Meleon is an extremely fast, customizable, lightweight web browser based on the Gecko layout engine developed by Mozilla which is also used by Firefox.
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      K-Meleon vs Mozilla Firefox opinions
      Some users think K-Meleon is a great alternative to Mozilla Firefox, some don't.
      jm0n3y Need speed? Get K-Meleion. Fastest browser on this list by far. Written in C++. Supports most Firefox addons. Also has a really nice retro Netscape Navigator theme.
      Positive comment about 2 years ago

      -1
    7. Konqueror is an Open Source web browser powered by the KHTML rendering engine (and optionally Webkit) which means it supports the latest web standards such as HTML5, Javascript, CSS3, and others. Konqueror is part of KDEs "kdebase" package.

      Discontinued

      The project seems to be no longer developed. In August 2017 the ex-maintainer of Konqueror, David Faure, proposed to integrate QupZilla, now Falkon , into KDE in order to replace the aging Konqueror.

      Most users think Konqueror is a great alternative to Mozilla Firefox.
    8. NetSurf is a free, open source web browser. It is written in C and released under the GNU Public Licence version 2. NetSurf has its own layout and rendering engine entirely written from scratch. It is small and capable.
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    9. Firefox Preview (internal code name: "Fenix") marks a release of the early version for an experimental Firefox browser for Android.

      Discontinued

      Firefox Preview has been merged into the stable Firefox, now it is Firefox Nightly.

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    10. Privacy Browser protects your privacy by disabling features like JavaScript, DOM storage, and cookies that are used by websites to track users. Settings can be adjusted by domain and on-the-fly to enable these features when needed.
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      Privacy Browser vs Mozilla Firefox opinions
      pros, cons and recent comments
      It has many filters and you can adapt privacy on every site. It also have dark mod and home button in menu. When you exit it deletes everything and its really gone.
      Positive comment 11 months ago

      0
      hands down privacy centered android browser till now
      Positive comment 11 months ago

      0
    Showing 30 of 91 alternatives