Firefox Developer Edition Welcome to your new favorite browser. Get the latest features, fast performance, and the development tools you need to build for the open web.

Aug 18, 2025 · Our developer guide explains how to get Firefox source code, how to build it on Linux, macOS and Windows, how to find your way around, and how to contribute to the project.

Jul 23, 2025 · By offering a suite of developer tools right inside the browser, Firefox Developer Edition speeds up the development process. Developers can edit code in real time, test it …

Looking for more than just Developer Tools? Check out the Firefox browser that is built specifically for developers and modern workflows.

Dec 5, 2016 · By using the Developer Edition, you gain access to tools and platform features at least 12 weeks before they reach the main Firefox release channel. Find out what's new in the …

Mozilla is a free software community founded in 1998 by members of Netscape. The Mozilla community uses, develops, publishes, and supports Mozilla products, thereby promoting free …

Experience cutting-edge browser features in pre-release versions: Firefox Developer Edition, Firefox Beta and Firefox Nightly. Download now!

Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile. For the latest updates to the developer tools, download Firefox Developer Edition.

This article aims to provide a thorough guide on how to download and install Firefox Developer Edition, ensuring that you can set it up quickly and efficiently to start benefiting from its …

Dec 16, 2025 · Firefox developer Mozilla on Tuesday said it has appointed insider Anthony Enzor-DeMeo as its CEO, as the company navigates changes in the browser market brought on by …