The best open source alternative to CometBird is Mozilla Firefox. If that doesn't suit you, our users have ranked more than 50 alternatives to CometBird and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to CometBird are Brave, Pale Moon, Firefox Developer Edition and Evolution.
Web browser by Mozilla with Gecko and WebKit engines. Offers tabbed browsing, HTML add-ons, Enhanced Tracking Protection, cross-device syncing, and privacy customization. Includes tools for developers and a 'Facebook Container' extension.
Fast, secure browser integrating ad and tracker blockage, privacy features, and VPN. Offers seamless performance with data and battery optimization, faster loads by blocking pop-ups and ads. Safeguards user privacy with tracking protections and built-in brave search.
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.
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.
Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.
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.
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).
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.
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.
Min is a fast, minimal browser that protects your privacy. It includes an interface designed to minimize distractions, and features such as:
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...
Iridium Browser is a free, open, and libre browser modification of the Chromium code base, with privacy being enhanced in several key areas.
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Brave is really really faster than others ( its speed is like a rocket) but it also consumes a huge computer's resource. CometBird's UI looks old and not interested and its load speed is much lower than Brave. Brave is No.1 at its range if it took a little bit of RAM.