Mozilla Firefox is described as 'Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking' and is a leading Web Browser in the security & privacy category. There are more than 100 alternatives to Mozilla Firefox for a variety of platforms, including Windows, Mac, Android, Linux and Android Tablet apps. The best Mozilla Firefox alternative is Vivaldi, which is free. Other great apps like Mozilla Firefox are Chromium, Zen Browser, Firefox Developer Edition and Brave.
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.
Sweden
EU
Gnuzilla is the GNU version of the Mozilla suite, and GNU IceCat is the GNU version of the Mozilla Firefox browser. Its main advantage is an ethical one: it is entirely free software.
United States
IronFox is a fork of DivestOS's Mull Browser based on Firefox. Our goal is to continue the legacy of Mull to provide a secure, hardened and privacy-oriented browser for daily use.
Browser using the Gecko layout engine to render web pages, which implements current and anticipated web standards.
A fast, secure web browser with advanced privacy features like a built-in VPN with ad blocking, Speed Dial, smart AI, cloud sync, picture-in-picture mode, and easy extensibility through plugins and extensions.
Norway
Chromium-based web browser for Windows, macOS, Linux, iOS, and Android with Chrome extension support, smart security, privacy tools, syncing of history and bookmarks, immersive reader, PDF tools, Collections for organizing content, and customizable new tab layouts.
United States
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.
SwedenEU
Cromite is a Chromium fork focusing on privacy, featuring built-in ad-blocking, user agent customization for privacy, DNS adjustments for security, and anti-fingerprinting measures to ensure user safety throughout browsing sessions.
Ladybird is an open-source web browser currently in development, with an alpha version expected to launch in 2026.
SwedenEU
Workspace fusing browsing, file management, and AI with local-first data; offers note-taking, applet creation, offline media storage, YouTube and PDF interaction, customizable AI-powered notes, citation tools, split views, sidebar navigation, and privacy features.
GermanyEU
Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.
GermanyEU
Privacy-focused open-source smartphone browser by DuckDuckGo blocks trackers, enforces encrypted connections, and provides a Privacy Grade. Partners with 'Terms of Service Didn't Read' and offers features like tabs, bookmarks, and autocomplete, keeping search data private.
United States
