Gecko-based software

Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current and anticipated web standards. The software is available for Windows, macOS, and Linux systems, with unofficial ports for other platforms, as well as a mobile version for Android (see Firefox for Android) and iOS.

free and open source email client and personal information manager

Linux-based mobile operating system by Mozilla

free HTML layout engine

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.

web browser

Zotero () is a free and open-source reference management software to manage bibliographic data and related research materials, such as PDF and ePUB files. Features include web browser integration, online syncing, generation of in-text citations, footnotes, and bibliographies, integrated PDF, ePUB and HTML readers with annotation capabilities, and a note editor, as well as integration with the word processors Microsoft Word, LibreOffice Writer, OnlyOffice, and Google Docs. It was originally created at the Center for History and New Media at George Mason University and, as of 2021, is developed

mobile browser developed by Mozilla Foundation

open source Web browser

free software calendar application

K-Meleon is a free and open-source, lightweight web browser for Microsoft Windows. It uses the native Windows API to create its user interface. Early versions of K-Meleon rendered web pages with Gecko, Mozilla's browser layout engine, which Mozilla's browser Firefox and its email client Thunderbird also use. K-Meleon became a popular Windows browser and was available as an optional default browser in Europe via BrowserChoice.eu. K-Meleon continued to use Gecko for several years after Mozilla deprecated embedding it. Current versions of K-Meleon use the Goanna layout engine, a fork of Gecko cre

music player

thumb|Nokia 8110 4G "banana phone" KaiOS is a mobile Linux distribution for keypad-based mobile phones. It is designed and optimised for affordable and low-power feature phones, while retaining access to Internet services through web apps, based on the Gecko engine. KaiOS was originally forked from the former Firefox OS open-source project, and is developed by KaiOS Technologies (Hong Kong) Limited; a company based in Hong Kong, whose largest shareholder is Chinese electronics conglomerate TCL Corporation.''''

Firefox derivative recommending only free software

Waterfox is a free and open-source web browser and fork of Firefox. It claims to be ethical and user-centric, emphasizing performance and privacy. There are official Waterfox releases for Windows, macOS, Linux and Android. It was created in 2012 to provide official 64-bit support when Firefox was only available for 32-bit systems.

Galeon is a discontinued Gecko-based web browser that was created by Marco Pesenti Gritti with the goal of delivering a consistent browsing experience to GNOME desktop environment. It gained some popularity in the early 2000s due to its speed, flexibility in configuration and features.

REDIRECT Mozilla Composer#KompoZer

LibreWolf is a free and open-source fork of Firefox, with an emphasis on privacy and security. It is licensed under the MPL 2.0.

software

Kazehakase (Japanese: ) is a discontinued web browser for Unix-like operating systems that uses the GTK+ libraries. Kazehakase embeds the Gecko layout engine as well as GTK+ WebKit.

Instantbird is a discontinued 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."

web browser based on Mozilla Firefox

free text editor for dynamic programming languages

open source audio player

Floorp is a free and open-source Japanese web browser based on Firefox.

Web browser

Integrated Development Environment

Classilla was a Gecko-based Internet suite for PowerPC-based classic Macintosh operating systems, essentially an updated descendant of the defunct Mozilla Application Suite by way of the Mac OS port maintained in the aborted WaMCom project. The name is a portmanteau of Classic (the classic Mac OS, as defined by the Classic Environment), and Mozilla.