Open Source Firefox Alternatives for Linux

There are many alternatives to Mozilla Firefox for Linux if you are looking for a replacement. The best open source Linux alternative is Zen Browser. If that doesn't suit you, our users have ranked more than 100 alternatives to Mozilla Firefox and loads of them are open source and available for Linux so hopefully you can find a suitable replacement. Other interesting open source Linux alternatives to Mozilla Firefox are Brave, Tor Browser, LibreWolf and Helium Browser.

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Most Mozilla Firefox alternatives are Web Browsers, but you can also narrow the list to Ad Blockers or Email Clients. Other popular filters are iPhone, Kindle Fire, Mac, Linux and Android. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
Mozilla Firefox alternatives page was last updated

Alternatives list

  1. Sielo Browser icon
     6 likes

    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.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2019

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  2. Sushi Browser icon
     9 likes

    The concept of the "Sushi Browser" is wanting to utilize the screen to the maximum capacity just by a simple operation. Its goal is to be as fantastic as sushi.

    Cost / License

    Application type

    Since

    • Since 2017

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  3. Historically, Iceape was a re-branding of SeaMonkey by the Debian project. However, Debian discontinued Iceape in December 2013 citing security concerns and lack of a maintainer.

    122 Iceape-UXP alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2021

    Platforms

    • Linux
    Good alternative?
     
  4. Light Firefox icon
     11 likes

    Light Firefox is a light browser based on Mozilla source code. Many components are slimmed down, so it can start faster and use less memory. By default, Light can run along with Firefox. Both x86 and x64 builds are available.

    133 Light Firefox alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2016

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
    Good alternative?
     
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  5. Web-browser for research that helps programmers think clearly.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2021

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    • AppImageHub
    Good alternative?
     
  6. Dooble is a new Open Source Web browser that focuses on compactness, security, and stability. Dooble is the only Web browser that encodes a user's browsing information. While other browsers have the support of thousands of dedicated individuals, Dooble has been harvested by...

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2011

    Platforms

    • Windows
    • Mac
    • Linux
    • BSD
    Good alternative?
     
  7. Hüma Browser is a web browser developed by prioritising user freedom, transparency and originality.

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2024

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Good alternative?
     
  8. A fast-searching and space-saving browser specially designed for programmers.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2022

    Platforms

    • Linux
    Good alternative?
     
  9. xombrero icon
     16 likes

    xombrero is a minimalist web browser with sophisticated security features designed-in, rather than through an add-on after-the-fact. In particular, it provides both persistent and per-session controls for scripts and cookies, making it easy to thwart tracking and scripting...

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2012

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    • Xfce
    Good alternative?
     
  10. Clean tab-less browser based on webkit2 and GTK4.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2022

    Alerts

    • Discontinued

    Platforms

    • Linux
    Good alternative?
     
  11. uzbl icon
     30 likes

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

    Cost / License

    • Free
    • Open Source

    Application type

    Since

    • Since 2011

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Linux
    Good alternative?
     
  12. A FireFox-ESR fork for Linux with focus on user freedom, security, privacy and anonymity. It's basically a patched build of FireFox-ESR with custom configuration, hardening, etc.

    Cost / License

    Application type

    Since

    • Since 2025

    Platforms

    • Linux
    • Docker
    Good alternative?
     
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