Download from Mozilla Firefox Developer Edition webpage. Extract it with file-roller and move the folder to its final location. A good practice is to install it in /opt/ or /usr/local/. Download Mozilla Firefox, a free web browser. Firefox is created by a global not-for-profit dedicated to putting individuals in control online. Get Firefox for Windows, macOS, Linux, Android and iOS today!

1. Mozilla Firefox Developer Edition Free Download
2. Firefox Download Developer Version
3. Mozilla Firefox Developer Edition Download Offline Installer
4. Firefox For Developer

About Firefox Developer Edition

Formerly known as Firefox Quantum, Firefox Developer Edition 89.0b3 is a specialized web browser built especially for web developers. Some of these tools and features eventually do make their way into the main Mozilla Firefox web browser. Stepping aside from the main development branch of Firefox, Firefox Developer offers a number of features that are currently not present in Firefox, namely beta features and tools for web development. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system/platform without restrictions. Firefox Developer Edition is available to all software users as a free download for Windows.

We tested the file Firefox Setup 89.0b3.exe with 23 antivirus programs and it turned out 100% clean. It's good practice to test any downloads from the Internet with trustworthy antivirus software.

Older versions of Windows often have trouble running modern software and thus Firefox Developer Edition may run into errors if you're running something like Windows XP. Conversely, much older software that hasn't been updated in years may run into errors while running on newer operating systems like Windows 10. You can always try running older programs in compatibility mode.

Officially supported operating systems include 32-bit and 64-bit versions of Windows 10, Windows 8 and Windows 7.

Mozilla Firefox Developer Edition Free Download

The current version of Firefox Developer Edition is 89.0b3 and is the latest version since we last checked. This is the full offline installer setup file for PC. This site has hosted other versions of it in the past such as 89.0b1, 88.0b9, 88.0b7, 88.0b5 and 88.0b2. At the moment, only the latest version is available.

Alternatives to Firefox Developer Edition available for download

• X-Firefox
  A portable version of the popular Firefox browser by Mozilla.
• Firefox ESR
  A version of Mozilla Firefox for large organizations that's optimized for stability without major sudden changes.
• Waterfox Portable
  A very fast browser running 64-bit code of Mozilla Firefox.
• Firefox Portable
  Portable version of the versatile Firefox browser with support for passwords, history, bookmarks and of course the endless number of extensions and...
• Opera Developer
  The cutting edge version of the Opera browser based on Chrome.
• Pale Moon Portable
  Web browser with improved page loading speed which disables less-used features on the Firefox code.
• Pale Moon
  Fast, stable and free web browser with addons, customizations and a developer tools with a familiar user-interface.
• Firemin
  Software which enables faster browsing by eliminating memory leaks in Firefox.

Key resources

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.

Firefox Download Developer Version

Firefox channels

Firefox Nightly

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.

Firefox Beta

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.

Firefox

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.

Contents

Mozilla Firefox Developer Edition Download Offline Installer

Firefox profiles

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.

Firefox For Developer

See also