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Featured Projects

The Mozilla community produces a lot of great software. This page contains links to some of the most popular projects and also provides links to places where you can find even more projects.

Mozilla Applications

These applications are developed by the Mozilla community and their code is hosted on

  • Camino

    Camino® is a Web browser optimized for Mac OS X with a Cocoa user interface, and powerful Gecko layout engine. It's the simple, secure, and fast browser for Mac OS X.
  • Firefox

    The award-winning Web browser is now faster, more secure, and fully customizable to your online life. With Firefox® 2, we've added powerful new features that make your online experience even better.
  • SeaMonkey

    SeaMonkey® is the all-in-one application formerly known as the "Mozilla Application Suite", containing a web browser, a mail and newsgroups client, an HTML editor, web development tools, and an IRC chat client in a single software package.
  • Sunbird and Lightning

    Sunbird® is a cross-platform application that brings Mozilla-style ease-of-use to your calendar. The Lightning extension adds a fully integrated calendar to Mozilla Thunderbird.
  • Thunderbird

    Thunderbird™ is Mozilla's next generation e-mail client. Thunderbird makes emailing safer, faster and easier than ever before.

Mozilla-Based Applications

These applications are built by individuals and organizations using Mozilla technologies. If you would like to suggest other applications to feature here, please let us know.

  • One Laptop Per Child Web Browser

    A simple application that uses the Gecko browser engine to provide a browser for the low-cost laptop that will be made available to children in developing nations around the world.
  • TomTom HOME

    TomTom HOME gives access to a huge array of services for users of TomTom's navigation solutions, including installing maps, making back-ups and downloading software updates.
  • See more Mozilla-based applications...


  • Add-ons Site

    Find the latest and greatest extensions, themes and plugins for Firefox, Thunderbird, SeaMonkey and Sunbird.

Development Tools

  • Bonsai

    Bonsai allows you to "see" changes taking place during a development cycle including checkin history, log information, diffs, and other useful information.
  • Bugzilla

    Bugzilla™ is a bug tracking system designed to help teams manage software development. Hundreds of organizations across the globe are using this powerful tool to get organized and communicate effectively.
  • Tinderbox

    Tinderbox is the first program to allow developers and management to see at a glance what is currently going on in all aspects of the development process.
  • See more development tools...


  • Tamarin

    Tamarin is a JavaScript engine written in C++. It currently implements Adobe ActionScript® 3 (a superset of ECMAScript Edition 3) and is embedded within the Adobe® Flash® Player 9.

    XPCOM is a cross platform component object model. It has multiple language bindings, letting the XPCOM components be used and implemented in JavaScript, Java, and Python in addition to C++.
  • XUL

    The XML User Interface Language lets you build feature-rich cross platform applications that can run connected or disconnected from the Internet.
  • See more Mozilla technologies...

A Global Community

The Mozilla project is a global community of people who have been working together since 1998 to create world-class open source software. Those involved in the community believe that openness, innovation, and opportunity are key to the continued health of the Internet. The projects on this page are just some examples of what the community is doing.

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