In early 2020, I outlined our efforts to expand Mozilla’s boards. Over the past year, we’ve added three new external Mozilla board members: Navrina Singh and Wambui Kinya to the Mozilla Foundation board and Laura Chambers to the Mozilla Corporation board.
- Mozilla Firefox is a fast, full-featured web browser that's easy to use. The Developer Edition adds in debugging and IDE tools as well as a unique theme to the standard beta channel of Firefox.
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Firefox is Mozilla's popular Web browser, available for multiple platforms including Windows, macOS, and Linux on the desktop and all Android and iOS mobile devices. With broad compatibility, the latest in Web technologies, and powerful development tools, Firefox is a great choice for both Web developers.
Today, I’m excited to welcome Mark Surman, Executive Director of the Mozilla Foundation, to the Foundation board.
As I said to staff prior to his appointment, when I think about who should hold the keys to Mozilla, Mark is high on that list. Mark has unique qualifications in terms of the overall direction of Mozilla, how our organizations interoperate, and if and how we create programs, structures or organizations. Mark is joining the Mozilla Foundation board as an individual based on these qualifications; we have not made the decision that the Executive Director is automatically a member of the Board.
Mark has demonstrated his commitment to Mozilla as a whole, over and over. The whole of Mozilla figures into his strategic thinking. He’s got a good sense of how Mozilla Foundation and Mozilla Corporation can magnify or reduce the effectiveness of Mozilla overall. Mark has a hunger for Mozilla to grow in impact. He has demonstrated an ability to think big, and to dive into the work that is in front of us today.
For those of you who don’t know Mark already, he brings over two decades of experience leading projects and organizations focused on the public interest side of the internet. In the 12 years since Mark joined Mozilla, he has built the Foundation into a leading philanthropic and advocacy voice championing the health of the internet. Prior to Mozilla, Mark spent 15 years working on everything from a non-profit internet provider to an early open source content management system to a global network of community-run cybercafes. Currently, Mark spends most of his time on Mozilla’s efforts to promote trustworthy AI in the tech industry, a major focus of the Foundation’s current efforts.
Please join me in welcoming Mark Surman to the Mozilla Foundation Board of Directors.
You can read Mark’s message about why he’s joining Mozilla here.
PS. As always, we continue to look for new members for both boards, with the goal of adding the skills, networks and diversity Mozilla will need to succeed in the future.
Firefox is Mozilla's popular Web browser, available for multiple platforms including Windows, macOS, and Linux on the desktop and all Android and iOS mobile devices. With broad compatibility, the latest in Web technologies, and powerful development tools, Firefox is a great choice for both Web developers and end users.
Firefox is an open source project; much of the code is contributed by our huge community of volunteers. Here you can learn about how to contribute to the Firefox project and you will also find links to information about the construction of Firefox add-ons, using the developer tools in Firefox, and other topics.
Learn how to create add-ons for Firefox, how to develop and build Firefox itself, and how the internals of Firefox and its subprojects work.
- Developer release notes
- Developer-focused release notes; learn what new capabilities for both Web sites and add-ons arrive in each version of Firefox.
- Project documentation
- Get detailed information about the internals of Firefox and its build system, so you can find your way around in the code.
- Developer guide
- Our developer guide provides details on how to get and compile the Firefox source code, how to find your way around, and how to contribute to the project.
Each night we build Firefox from the latest code in mozilla-central. These builds are for Firefox developers or those who want to try out the very latest cutting edge features while they're still under active development.
Firefox Developer Edition
This is a version of Firefox tailored for developers. Firefox Developer Edition has all the latest developer tools that have reached beta. We also add some extra features for developers that are only available in this channel. It uses its own path and profile, so that you can run it alongside Release or Beta Firefox.
Learn more about Firefox Developer Edition.
Every four weeks, we take the features that are stable enough, and create a new version of Firefox Beta. Firefox Beta builds are for Firefox enthusiasts to test what's destined to become the next released Firefox version.
After stabilizing for another four weeks in Beta, we're ready to ship the new features to hundreds of millions of users in a new release version of Firefox.
Firefox Extended Support Release (ESR)
Firefox ESR is the long-term support edition of Firefox for desktop for use by organizations including schools, universities, businesses and others who need extended support for mass deployments.
Learn more about Firefox Extended Support Release.
- Experimental features in Firefox
- In order to test new features, Mozilla publishes a test version of the Firefox browser, Firefox Nightly, every day. These nightly builds of Firefox typically include experimental or partially-implemented features, including those for proposed or cutting-edge Web platform standards.
- Firefox developer release notes
- Below you'll find links to the developer release notes for every Firefox release. These lovingly-crafted notes provide details on what features and APIs were added and improved and what bugs were eliminated in each version of Firefox. All written to give developers like you the information they need most. You're welcome.
Mozilla Developer Edition Download
- This document lists privacy-related documentation.
Mozilla Firefox Developer Edition Download Offline Installer
If you find yourself using multiple Firefox channels—or just multiple configurations—on a regular basis, you should read how to use multiple Firefox profiles by turning Firefox's Profile Manager and other profile management tools to your advantage.