Formerly known as Firefox Quantum, Firefox Developer Edition 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.
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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.
Download Firefox Developer Edition: Fast web browser with latest features and Firefox development tools. It is developed by Mozilla. This title is being offered by Canadian Content as Freeware. Download Mozilla Firefox Developer Edition for Mac to get the latest features, fast performance, and the development tools you need to build for the open web. Mozilla Firefox Developer Edition has.
The look and feel of Firefox Developer Edition is slightly different from the main release, but it's nothing to get too excited about; it's mainly just the color scheme.
In terms of tools, Developer Edition provides a WebIDE, Browser Console, Responsive Design Mode, Eyedropper, Scratchpad (for JavaScript debugging) and Service Workers. These tools can be handle for testing web applications.
Like the main branch of Firefox, this version also includes the main development tools like the Inspector, Console, Debugger, Style Editor, Performance tab, Memory, Network, Storage and Accessibility.
Firefox Developer Edition 89.0b3 on 32-bit and 64-bit PCs
This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from web browsers without restrictions. Firefox Developer Edition 89.0b3 is available to all software users as a free download for Windows. As an open source project, you are free to view the source code and distribute this software application freely.
The program was created by the developer as a freeware product, but donations for the continued development are highly appreciated. You may generally make a donation via the developer's main web site.
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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 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.
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Contents
- 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.
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- Privacy
- This document lists privacy-related documentation.
Firefox profiles
Download Firefox For Developers
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.
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See also