Firefox-based Browsers for Windows

Privacy-centric, open-source browser with unique UI features like vertical tabs, Split View, and Zen Glance, focusing on security and tranquility.

Enhance privacy with a secure, portable browser that hides your IP and encrypts connections on multiple platforms, maintaining anonymity.

Privacy-focused browser with over 500 settings for enhanced security and performance, independent of Firefox, and not affiliated with Mozilla.

The Floorp project is a project that seeks privacy and a balance between anonymity and the public nature of the web.

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.

Waterfox is an open-source, privacy-focused browser based on the popular open source browser with a red panda as a mascot. It is designed to be a drop-in replacement for said browser that offers enhanced privacy features, performance improvements, and customizability while...

An open-source web browser forked from Mozilla Firefox. It focuses on security, efficiency, customization, and no data gathering.

Firefox Developer Edition brings you latest features, fast performance, and the development tools you need to build for the open web. Its powerful development tools will extend your ability to work across multiple platforms from one place.

A Floorp fork with custom branding and KDE patches by OpenSUSE. Features include pre-installed extensions like Ublock Origin and canvasblocker.

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...

Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout and rendering engine (a fork of Gecko) and builds on the Unified XUL Platform (UXP), which in turn is a fork of the Mozilla...

A privacy-centric web browser, with an elegant UI and a robust built-in ad blocker, all designed with anonymity in mind.

r3dfox is a fork of the open source web browser Mozilla Firefox made specifically for Windows Vista, 7, and 8 compatibility.

An experimental Firefox fork that enhances focus and increases work productivity due to its hyper minimalistic UI and built-in tools.

Mozilla's official alternative to Mozilla Firefox, with ability to install unsigned addons in release version

Mypal is a current and maintained Windows XP web browser. Mypal is based on Mozilla Firefox code from a couple years ago, but is still actively maintained with security and feature updates by the developer.

A Firefox build for web scraping and anti-bot evasion. It injects fingerprints at a low level, modifying device info in C++ instead of using JS, and is designed to blend in with regular user traffic.

The Virtual Environment for secured and comfortable Web Browsing: On the basis of a “Browser-in-the-Box” concept a virtual machine is provided with a reduced operating system and a web browser encapsulated therein.

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.

Search the internet with the PrivacyWall app and enable tracking protection to block third-party tracking as you search and browse the web.

Firefox Ultimate is a modified and optimized version of Mozilla Mozilla Firefox .

lawlietfox is a custom Firefox build. The purpose of lawlietfox is providing better performance than official builds.

pcxfirefox is a custom Firefox build, its project purpose is improving Firefox's performance and keeping a certain stability. Testing the popular compilers' overall performance.

BitTube browser respects your time and rewards your attention. Based on Firefox with integrated Ad blocker rewards.

Orca Browser is an extremely fast and user friendly web browser, designed to add more functions on to the latest version of Firefox. Not only does Orca Browser contains all the features, such as security, low memory usage, spell-checker, built-in download manager, etc.