Download Mozilla Developer Edition



Download Firefox Developer Edition - Improve your browsing experience by getting your hands on the latest edition of Firefox with the new and improved Quantum engine and all the latest goodies. Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation. Portions of this content are ©1998–2021 by individual contributors. Content available under a Creative Commons license. Contribute to this site. Gather in this interactive, online, multi-dimensional social space. Firefox Developer Edition. Get the Firefox browser built just for developers. 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. 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.

development web browser

Download from PortableApps.com

Version 89.0 Beta 1 for Windows, English
115MB download / 404MB installed
Notes | All Languages | Antivirus Scan | Details

Mozilla Firefox Developer Edition, Portable can run from a cloud folder, external drive, or local folder without installing into Windows. It's even better with the PortableApps.com Platform for easy installs and automatic updates.

Also Available: Firefox Stable, Firefox ESR (Extended Support Release), Firefox Beta, Firefox Nightly, Legacy versions

- Support Firefox Developer Edition development

- Support PortableApps.com's development and hosting

Description

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.

Localizations

LanguageLinkMD5
ArabicعربيDownloada2689a5d7ba880d35c62ab9b6ca68651
Chinese (Simplified)中文 (简体)Download811f07248a5d53ad64ad53c46882ed1c
Chinese (Traditional)正體中文 (繁體)Download767b2fc4412ddd387b9fceaa253e3d7b
CzechČeštinaDownloadaa14ef595aa4ac88cae1de8d3e91ca1a
DutchNederlandsDownload0c5ec3d3cba0be6cc3b3e14c15fa6ae9
EnglishEnglishDownloadefd5bb81963b1d5550e536518886177a
English (British)English (British)Downloadf5dca0bbf9f38780d7624f9ae96f3e94
FarsiفارسیDownloaddf4b549af080577424bfd58458c1c0e9
FrenchFrançaisDownload026ae6dde397ea137dd1b29b30742c46
GermanDeutschDownload69d28189ef5aa3482a0cb4dfb97e8a94
HebrewעִבְרִיתDownloadfad910a5032a1a2440a986ec6343469e
Hindi (India)हिन्दी (भारत)Downloaddcd6a7a74f2875fc5561e7954dfd935c
HungarianMagyarDownloadaeeb62343c08a79b467dad13f7e4a890
IndonesianBahasa IndonesiaDownload99a4852d94e529181c9dc40e831d7abc
ItalianItalianoDownload016f6d15a0ef3d2740e4217aecaf847f
Japanese日本語Download2dba329a181d9668b5f6d7af1d8588a9
Korean한국어Download7d51c81eb6c24f23f58c0974b1629fae
PolishPolskiDownload97cfc26683274f7cf6dae03fa7241b19
Portuguese (Brazilian)Português (do Brasil)Downloada49eb0f550a51a41c95773a5883d648e
Portuguese (Portugal)Português (Europeu)Download904df2d521d722ef0b406c6fdf5d0a6f
RomanianRomânăDownloadad5d9469b0c6fe36e32d5e14e13a0d27
RussianРусскийDownload97ce179aeb0ad0a4949bb551fa8aa2c2
SlovakslovenčinaDownload78f2d7b47edcec883205f84dd2059616
Spanish (Spain)Español (de España)Download2454f16aa0c459cd520f42cf2858f82c
Spanish (International)Español (internacional)Download0f95dc8c3104ae59a9bc6e9fec88a5e2
TurkishTürkçeDownloadbef99c289c2caa441508543618b2ea99

App Notes

The developer release will install alongside a standard Firefox Portable install in a FirefoxPortableDeveloper directory. Note that PortableApps.com will release one version for each major version (example: 78b1 but not 78b2). For updates within each major release, use the internal updater. From Mozilla: 'This is pre-release software: you may encounter compatibility problems with some websites and add-ons.'

Support

For help with this app, please see the following:

  • External: Publisher Support
  • PortableApps.com: Internet Support Forum

Download Details

  • Publisher: Mozilla & PortableApps.com (John T. Haller)
  • Date Updated: 2021-04-22
  • Date Added: 2014-11-10
  • System Requirements: Windows 7, 8, 10 & WINE
  • App License: Open Source (MPL/GPL/LPGL under Mozilla EULA)
  • Source: Firefox Developer Edition, Launcher source included, PortableApps.com Installer
  • MD5 Hash: efd5bb81963b1d5550e536518886177a (English)
  • SHA256 Hash: 4fa8762edc461c9d4751b19716b680e6d6253ac204d2dc943df3e686a8a1570d (English)

Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and are used under license.

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.

Mozilla

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

Download Mozilla Firefox Developer Edition

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)

Download Firefox Developer Edition Free

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.

Download Firefox For Developers

Learn more about Firefox Extended Support Release.

Firefox Download Developer Version

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.
Privacy
This document lists privacy-related documentation.

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 Developer Edition Download 64

See also