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.




SigmaOS is described as 'The new home for your internet. One window. Many workspaces. All your tabs' and is a Web Browser in the web browsers category. There are more than 100 alternatives to SigmaOS for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet apps. The best SigmaOS alternative is Mozilla Firefox, which is both free and Open Source. Other great apps like SigmaOS are Zen Browser, Brave, Tor Browser and Google Chrome.
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.




Browser using the Gecko layout engine to render web pages, which implements current and anticipated web standards.




The best browser for your Mac is the one that comes with your Mac. Safari is faster and more energy efficient than other browsers. Handy tools help you save, find, and share your favorite sites. Built-in privacy features help keep your browsing your business.




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.




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.




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).


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.




WebKit-based privacy browser supporting Chrome and Firefox extensions, zero telemetry, built-in ad-blocker, anti-tracking for enhanced privacy, native macOS and iOS integration, lightweight performance, battery-saving technology, and a streamlined browsing experience.




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.




A digital workspace organizer that allows you to unify as many applications as you want, all in one place. It is perfect for those who care about productivity while working with many business and personal apps.




A web browser for Android, based on Mozilla's Fenix version of Firefox, GeckoView and Mozilla Android Components.




GNOME Web is the web browser for the GNOME desktop, based on the popular WebKit engine. It offers a simple, clean, beautiful view of the Web featuring first-class GNOME desktop integration. Its code name is Epiphany.



