Firefox AlternativesOnly apps from the EU

The best 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 many of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Mozilla Firefox are Zen Browser, Falkon, Mullvad Browser and Ladybird.

filter to find the best alternatives

Mozilla Firefox alternatives are mainly Web Browsers, but if you're looking for Ad Blockers or Virtualization Tools you can filter on that. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Mozilla Firefox.
Mozilla Firefox iconMozilla Firefox
  7431
  • ...

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

More about Mozilla Firefox
More about Mozilla Firefox
Mozilla Firefox alternatives page was last updated May 14, 2025
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  1. Pale Moon icon

    Pale Moon

     394 likes
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    This open-source Goanna-based browser for Windows, Linux, Mac, and FreeBSD offers customization, security, and privacy. Forked from Firefox, it's optimized for modern processors, ad-free, and supports unique extensions, community-backed. Comes with a functional status bar, supports NPAPI plugins.

    186 Pale Moon alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    Pale Moon screenshot 1

    Properties

    1.  Lightweight
    2.  Customizable
    3.  Optimal performance
    4.  Privacy focused
    5.  Security-focused
    6.  Support for Themes

    Features

    1.  Based on Goanna engine
    2.  Support for Firefox extensions
    3.  Firefox-based Browsers
    4.  Built-in RSS reader
    5.  Legacy addons support
    6.  Ad-free
    7.  No Tracking
    8.  User Custom Toolbar
    9.  Extensible by Plugins/Extensions
    10.  Dark Mode
    11.  Optimized for Windows
    12.  Optimized Firefox

    Pale Moon VS Mozilla Firefox

     
    Comments about Pale Moon as an Alternative to Mozilla Firefox
    Comment summary: Pale Moon is often praised for its lightweight performance, stability, and resemblance to older versions of Firefox, appealing to users nostalgic for its classic features and UI. Despite its strengths like fast performance and open-source nature, criticisms include its outdated interface and lack of modern extension support. Users appreciate its dedication to security and privacy, making it a notable alternative for those dissatisfied with Firefox's recent changes.
    Top Positive Comment
    pefado
    Feb 14, 2022
    4

    Best Good Old Firefox! Pale Moon is the what Firefox should be!

    Top Negative Comment
    Michal D.
    Aug 31, 2021
    2

    Cons:

    • as base is used a very old version of Firefox
    • bad user experience (interface)
    • an very old (and probably already unsupported) version of Sync
    • no support for modern plugins, extensions and themes
    Most Recent Comment
    huantech
    Positive Mar 9, 2025
    0

    The only real Independent Browser. Everything else is made or financed by Google or Apple.

    Show more comments
    3 of 25 comments
    Mozilla Firefox Icon
    Pale Moon icon

    • Most users think Pale Moon is a great Mozilla Firefox alternative.

    • Pale Moon is Free and Open SourceMozilla Firefox is also Free and Open Source
    • Pale Moon is Lightweight, Customizable, Privacy focused and Security-focusedMozilla Firefox is not according to our users
  2. Zen Browser icon

    Zen Browser

     197 likes
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    Experience a privacy-focused, open-source browser rich with features like vertical tabs, Split View, Zen Glance, and extensive security protocols. Built on Firefox, it's currently in beta, emphasizing privacy and adaptability, with future plans for horizontal tabs.

    83 Zen Browser alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • ES flagSpain
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Arch Linux
    • Flathub
    • Flatpak
    Zen Browser screenshot 1

    Properties

    1.  Customizable
    2.  Privacy focused
    3.  Support for Themes
    4.  Clean design
    5.  Lightweight

    Features

    1.  Firefox-based Browsers
    2.  Vertical Tabs
    3.  Split-screen view
    4.  Extensible by Plugins/Extensions
    5.  Sidebar
    6.  Workspaces
    7.  Dark Mode
    8.  Based on Gecko engine
    9.  Multiple Profiles
    10.  Picture in Picture
    11.  No Tracking
    12.  No registration required

    Zen Browser VS Mozilla Firefox

     
    Comments about Zen Browser as an Alternative to Mozilla Firefox
    Most Recent Comment
    rfr7Foglia
    Positive Mar 5, 2025
    2

    Firefox fork with a much improved GUI, inspired by Arc Browser

    Guest
    Positive Nov 23, 2024
    3

    It's based on firefox , but with many more features .. But it can be a little buggy

    cosmospider
    Positive Apr 19, 2025
    0

    It's a relatively new fork worth trying. It already has a sizeable community.

    Mozilla Firefox Icon
    Zen Browser icon

    • Almost everyone thinks Zen Browser is a great Mozilla Firefox alternative.

    • Zen Browser is Free and Open SourceMozilla Firefox is also Free and Open Source
    • Zen Browser is Customizable and Privacy focusedMozilla Firefox is not according to our users
  4. Falkon icon

    Falkon

     166 likes
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    Falkon, formerly QupZilla, is a QtWebEngine based cross-platform web browser.

    It aims to be a lightweight web browser available through all major platforms.

    Falkon has all standard functions you expect from a web browser. It includes bookmarks, history (both also in sidebar).

    182 Falkon alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Linux
    • KDE Plasma
    • Flathub
    • Haiku
    Falkon screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Built-in Ad-blocker
    2.  Based on QTWebEngine
    3.  Cross-Platform
    4.  Portable
    5.  Extensible by Plugins/Extensions
    6.  Speed dial
    7.  Fast speed
    8.  Built-in RSS reader
    9.  Multiple languages

    Falkon VS Mozilla Firefox

     
    Comments about Falkon as an Alternative to Mozilla Firefox
    Most Recent Comment
    Kelson V
    Positive Jan 4, 2025
    0

    Falkon's really fast even on low-end hardware. Add-ons are still really sparse though, and I haven't found a good way to sync bookmarks or connect it to KeePassXC yet.

    Centaro
    Negative Nov 28, 2023
    1

    Its only ad-blocker stopped working on YouTube a while ago.

    Curuxa
    Aug 1, 2022
    2

    It isn't really bad, but not a lot of add-ons and based con Qtweb (chromium). Not fingerprinting protection like Firefox but also no telemetry by default. It is ok, but it could be better.

    Show more comments
    3 of 4 comments
    Mozilla Firefox Icon
    Falkon icon

    • Most users think Falkon is a great Mozilla Firefox alternative.

    • Falkon is Free and Open SourceMozilla Firefox is also Free and Open Source
    • Falkon is LightweightMozilla Firefox is not according to our users
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  6. Mullvad Browser icon

    Mullvad Browser

     96 likes
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    The Mullvad Browser is a privacy-focused web browser developed in a collaboration between Mullvad VPN and the Tor Project. It’s designed to minimize tracking and fingerprinting. You could say it’s a Tor Browser to use without the Tor Network.

    86 Mullvad Browser alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • SE flagSweden
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Mozilla Firefox
    Mullvad Browser screenshot 1

    Properties

    1.  Privacy focused
    2.  Support for Themes
    3.  Lightweight

    Features

    1.  Firefox-based Browsers
    2.  Block Trackers
    3.  No Tracking
    4.  Ad-free
    5.  Built-in Ad-blocker
    6.  No registration required
    7.  Fingerprinting protection
    8.  Dark Mode
    9.  Extensible by Plugins/Extensions
    10.  Proactive Protection
    11.  Picture in Picture
    12.  No Logs

    Mullvad Browser VS Mozilla Firefox

     
    Comments about Mullvad Browser as an Alternative to Mozilla Firefox
    dabockster
    Dec 10, 2024
    0

    Not as overkill as Tor Browser, but still a bit hostile for everyday use.

    Mozilla Firefox Icon
    Mullvad Browser icon

    • Almost everyone thinks Mullvad Browser is a great Mozilla Firefox alternative.

    • Mullvad Browser is Free and Open SourceMozilla Firefox is also Free and Open Source
    • Mullvad Browser is Privacy focused and LightweightMozilla Firefox is not according to our users
  7. Ladybird icon

    Ladybird

     34 likes
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    Ladybird is an open-source web browser currently in development, with an alpha version expected to launch in 2026.

    50 Ladybird alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • SE flagSweden
    • European Union flagEU

    Platforms

    • Mac
    • Linux
    Ladybird screenshot 1

    Ladybird Features

    1.  Ad-free
    2.  Independent

    Ladybird VS Mozilla Firefox

     
    Comments about Ladybird as an Alternative to Mozilla Firefox
    luananeder
    Positive Jun 27, 2024
    0

    It may not work completely well with modern web yet, but it's nice there's still someone working on an independent web browser out there. Everything else is just chromium or forks of firefox...

    Mozilla Firefox Icon
    Ladybird icon
    • Ladybird is Free and Open SourceMozilla Firefox is also Free and Open Source
  8. Iridium Browser icon

    Iridium Browser

     92 likes
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    Iridium Browser is a free, open, and libre browser modification of the Chromium code base, with privacy being enhanced in several key areas.

    167 Iridium Browser alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    Iridium Browser screenshot 1

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Chromium-based Browsers
    2.  Ungoogled
    3.  Dark Mode
    4.  Portable

    Iridium Browser VS Mozilla Firefox

     
    Comments about Iridium Browser as an Alternative to Mozilla Firefox
    dabockster
    Negative Dec 10, 2024
    1

    Too slow on security updates. Source code is hard to find.

    Guest
    Positive Dec 8, 2016
    -1

    Best speed and best default privacy settings over all browsers

    Mozilla Firefox Icon
    Iridium Browser icon

    • Most users think Iridium Browser is a great Mozilla Firefox alternative.

    • Iridium Browser is Free and Open SourceMozilla Firefox is also Free and Open Source
    • Iridium Browser is Privacy focused and Security-focusedMozilla Firefox is not according to our users
  10. K-Meleon icon

    K-Meleon

     122 likes
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    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. K-Meleon is free, open source software released under the GNU General Public License and is designed specifically for...

    156 K-Meleon alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • FR flagFrance
    • European Union flagEU

    Platforms

    • Windows
    • Gecko
    K-Meleon screenshot 1

    Properties

    1.  Lightweight
    2.  Customizable

    Features

    1.  Portable
    2.  Extensible by Plugins/Extensions
    3.  Based on Gecko engine
    4.  Firefox-based Browsers
    5.  Active Development

    K-Meleon VS Mozilla Firefox

     
    Comments about K-Meleon as an Alternative to Mozilla Firefox
    jm0n3y
    Positive May 6, 2019
    -1

    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.

    Mozilla Firefox Icon
    K-Meleon icon

    • Most users think K-Meleon is a great Mozilla Firefox alternative.

    • K-Meleon is Free and Open SourceMozilla Firefox is also Free and Open Source
    • K-Meleon is LightweightMozilla Firefox is not according to our users
7 of 36 Mozilla Firefox alternatives