Basilisk (web browser)W
Basilisk (web browser)

Basilisk is an open-source web browser created by the developer of the Pale Moon browser. There are releases for Microsoft Windows and Linux, and an unofficial build for macOS.

BlueGriffonW
BlueGriffon

BlueGriffon is a WYSIWYG content editor for the World Wide Web. It is based on the discontinued Nvu editor, which in turn is based on the Composer component of the Mozilla Application Suite, which was previously known as Netscape Composer, which was bundled with Netscape Gold before it was renamed to Netscape Communicator. Powered by Gecko, the rendering engine of Firefox, it can edit Web pages in conformance to Web Standards. It runs on Microsoft Windows, macOS and Linux.

BoxeeW
Boxee

Boxee was a cross-platform freeware HTPC software application with a 10-foot user interface and social networking features designed for the living-room TV. It enabled its users to view, rate and recommend content to their friends through many social network services and interactive media related features.

CeltxW
Celtx

Celtx is media pre-production software, designed for creating and organizing media projects like screenplays, films, videos, stageplays, documentaries, machinima, games, and podcasts.

ChatZillaW
ChatZilla

ChatZilla is an IRC client for Mozilla-based browsers such as Firefox, introduced in 2000. It is cross-platform open source software which has been noted for its consistent appearance across platforms, CSS appearance customization and scripting.

ConkerorW
Conkeror

Conkeror is a Mozilla-based web browser designed to be navigated primarily by a computer keyboard. Its design is mainly patterned after the text editor GNU Emacs, with some influence from other programs, including vi.

FirefoxW
Firefox

Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface. Firefox is officially available for Windows 7 or newer, macOS, and Linux. Its unofficial ports are available for various Unix and Unix-like operating systems including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix. Firefox is also available for Android and iOS. However, the iOS version uses the WebKit layout engine instead of Gecko due to platform requirements, as with all other iOS web browsers. An optimized version of Firefox is also available on the Amazon Fire TV, as one of the two main browsers available with Amazon's Silk Browser.

Firefox 2W
Firefox 2

Mozilla Firefox 2 is a version of Firefox, a web browser released on October 24, 2006 by the Mozilla Corporation.

Firefox 3.0W
Firefox 3.0

Mozilla Firefox 3.0 is a version of the Firefox web browser released on June 17, 2008 by the Mozilla Corporation.

Firefox 3.5W
Firefox 3.5

Mozilla Firefox 3.5 is a version of the Firefox web browser released in June 2009, adding a variety of new features to Firefox. Version 3.5 was touted as being twice as fast as 3.0. It includes private browsing, has tear-off tabs, and uses the Gecko 1.9.1 engine. It was codenamed Shiretoko during development, and was initially numbered Firefox 3.1 before Mozilla developers decided to change the version to 3.5, to reflect the inclusion of a significantly greater scope of changes than were originally planned. It is the last major version to support X BitMap images.

Firefox 3.6W
Firefox 3.6

Mozilla Firefox 3.6 is a version of the Firefox web browser released in January 2010. The release's main improvement over Firefox 3.5 is improved performance. It uses the Gecko 1.9.2 engine, which improves compliance with web standards. It was codenamed Namoroka. In this version, support for X BitMap images was dropped.

Firefox 4W
Firefox 4

Mozilla Firefox 4 is a version of the Firefox web browser, released on March 22, 2011. The first beta was made available on July 6, 2010; Release Candidate 2 was released on March 18, 2011. It was codenamed Tumucumaque, and was Firefox's last large release cycle. The Mozilla team planned smaller and quicker releases following other browser vendors. The primary goals for this version included improvements in performance, standards support, and user interface.

Firefox for AndroidW
Firefox for Android

Firefox for Android is a free and open-source web browser developed by Mozilla for Android smartphones and tablet computers. Firefox for Android uses the GeckoView engine.

Firefox OSW
Firefox OS

Firefox OS is a discontinued open-source operating system – made for smartphones, tablet computers and smart TVs – designed by Mozilla and external contributors. It is based on the rendering engine of the Firefox web browser, Gecko, and on the Linux kernel. It was first commercially released in 2013.

FireFTPW
FireFTP

FireFTP is a free, open-source, cross-platform FTP client for Mozilla Firefox in the form of an add-on. It supports FTP, FTPS, and SFTP. FireFTP is charityware and runs on platforms that Firefox supports. FireFTP's layout is similar to that of WS FTP. It is no longer compatible with Firefox 57 (Quantum) and later, and the authors recommend using Waterfox instead of Firefox.

Flock (web browser)W
Flock (web browser)

Flock is a discontinued web browser that specialized in providing social networking and Web 2.0 facilities built into its user interface. Earlier versions of Flock used the Gecko HTML rendering engine by Mozilla. Version 2.6.2, released on January 27, 2011, was the last version based on Mozilla Firefox. Starting with version 3, Flock was based on Chromium and so used the WebKit rendering engine. Flock was available as a free download, and supported Microsoft Windows, Mac OS X and, at one time, Linux as well.

InstantbirdW
Instantbird

Instantbird is a cross-platform instant messaging client based on Mozilla's XULRunner and the open-source library libpurple used in Pidgin. Instantbird is free software available under the GNU General Public License. Over 250 add-ons allow user customization of, and addition of, features. On October 18, 2017 Florian Quèze announced that "... we are stopping development of Instantbird as a standalone product."

KaiOSW
KaiOS

KaiOS is a mobile operating system based on Linux, developed by KaiOS Technologies Limited, a company based in Kowloon, Hong Kong, for keypad devices with largest shareholder being Chinese multinational electronics conglomerate TCL Corporation. It is forked from B2G OS, an open source community-driven fork of Firefox OS, which was discontinued by Mozilla in 2016.

KiwixW
Kiwix

Kiwix is a free and open-source offline web browser created by Emmanuel Engelhart and Renaud Gaudin in 2007. It was first launched to allow offline access to Wikipedia, but has since expanded to include other projects from the Wikimedia Foundation as well as public domain texts from Project Gutenberg. Available in more than 100 languages, Kiwix has been included in several high-profile projects, from smuggling operations in North Korea and encyclopedic access in Cuba to Google Impact Challenge's recipient Bibliothèques Sans Frontières.

Komodo EditW
Komodo Edit

Komodo Edit is a free and open source text editor for dynamic programming languages. It was introduced in January 2007 to complement ActiveState's commercial Komodo IDE. As of version 4.3, Komodo Edit is built atop the Open Komodo project.

Komodo IDEW
Komodo IDE

Komodo IDE is an integrated development environment (IDE) for dynamic programming languages. It was introduced in May 2000. Many of Komodo's features are derived from an embedded Python interpreter.

KompoZerW
KompoZer

KompoZer is a discontinued open source WYSIWYG HTML editor based on the Nvu editor, which was itself derived from the Composer component of the Mozilla Application Suite. KompoZer was forked as a community-driven project with development coordinated through Sourceforge.

Lightning (software)W
Lightning (software)

The Lightning project, announced on December 22, 2004, and currently developed by the Mozilla Foundation, produces an extension that adds calendar and scheduling functionality to the Mozilla Thunderbird mail and newsgroup client and SeaMonkey internet suite. Lightning is an iCalendar compatible calendar.

Mozilla SunbirdW
Mozilla Sunbird

Mozilla Sunbird is a discontinued free and open-source, cross-platform calendar application that was developed by the Mozilla Foundation, Sun Microsystems and many volunteers. Mozilla Sunbird was described as "... a cross platform standalone calendar application based on Mozilla's XUL user interface language." Announced in July 2003, Sunbird was a standalone version of the Mozilla Calendar Project.

Mozilla ThunderbirdW
Mozilla Thunderbird

Mozilla Thunderbird is a free and open-source cross-platform email client, personal information manager, news client, RSS and chat client developed by the Mozilla Foundation.

Nightingale (software)W
Nightingale (software)

Nightingale is a discontinued free, open source audio player and web browser based on the Songbird media player source code. As such, Nightingale's engine is based on the Mozilla XULRunner with libraries such as the GStreamer media framework and libtag providing media tagging and playback support, amongst others. Since official support for Linux was dropped by Songbird in April 2010, Linux-using members of the Songbird community diverged and created the project. By contrast to Songbird, which is primarily licensed under the GPLv2 but includes artwork that is not freely distributable, Nightingale is free software, licensed under the GPLv2, with portions under the MPL and BSD licenses.

Pale Moon (web browser)W
Pale Moon (web browser)

Pale Moon is an open-source web browser with an emphasis on customizability; its motto is "Your browser, Your way". There are official releases for Microsoft Windows and Linux, an unofficial build for macOS, and contributed builds for various platforms.

QiqqaW
Qiqqa

Qiqqa is a freeware and freemium reference management software that allows researchers to work with thousands of PDFs. It combines PDF reference management tools, a citation manager, and a mind map brainstorming tool. It integrates with Microsoft Word XP, 2003, 2007 and 2010 and BibTeX/LaTeX to automatically produce citations and bibliographies in thousands of styles.

SeaMonkeyW
SeaMonkey

SeaMonkey is a free and open-source Internet suite. It is the continuation of the former Mozilla Application Suite, based on the same source code, which itself grew out of Netscape Communicator and formed the base of Netscape 6 and Netscape 7.

Songbird (software)W
Songbird (software)

Songbird is a discontinued music player originally released in early 2006 with the stated mission "to incubate Songbird, the first Web player, to catalyze and champion a diverse, open Media Web".

SubTileW
SubTile

SubTile is a lightweight platform independent Subversion (SVN) client, which runs on all platforms where Mozilla XULRunner is available. GUI itself is released under the GNU General Public License.

SwiftfoxW
Swiftfox

Swiftfox was a web browser based on Mozilla Firefox. It was available for Linux platforms and distributed by Jason Halme. Swiftfox was a set of builds of Firefox optimized for different Intel and AMD microprocessors. Swiftfox was freely downloadable with open source code and proprietary binaries. Firefox extensions and plugins were compatible with Swiftfox, with notable exceptions. The name Swiftfox comes from the animal swift fox. Swiftfox differs from Firefox by a limited number of changes, and builds for different processors. Swiftfox was discontinued at some point prior to April 2017, and the project homepage now redirects to the creator's private Twitter account.

Timberwolf (web browser)W
Timberwolf (web browser)

Timberwolf was a port of the Firefox web browser to the AmigaOS 4 platform.

WaterfoxW
Waterfox

Waterfox is an open-source web browser for x64, ARM64, and PPC64LE systems. It is intended to be ethical and maintain support for legacy extensions dropped by Firefox, from which it is forked. There are official releases for Windows, Mac OS, Linux and Android in two versions: Classic and Current.

ZoteroW
Zotero

Zotero is a free and open-source reference management software to manage bibliographic data and related research materials. Notable features include web browser integration, online syncing, generation of in-text citations, footnotes, and bibliographies, as well as integration with the word processors Microsoft Word, LibreOffice Writer, and Google Docs. It is produced by the Center for History and New Media at George Mason University.