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This is a prerelease version of Firefox Developer Edition.

Firefox Developer Edition


Package test results have failed.

This package is exempt from moderation. While it is likely safe for you, there is more risk involved.

Firefox Developer Edition replaces the Aurora channel in the Firefox Release Process. Like Aurora, features will land in the Developer Edition every six weeks, after they have stabilized in Nightly builds.

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.

Additionally, the following experimental developer tools are persistent features of Firefox Developer Edition:


Allows you to develop, deploy and debug Web apps directly in your browser, or on a Firefox OS device. It lets you create a new Firefox OS app (which is just a web app) from a template, or open up the code of an existing app. From there you can edit the app’s files. It’s one click to run the app in a simulator and one more to debug it with the developer tools. Web IDE - YouTube

Valence (previously called Firefox Tools Adapter)

Lets you develop and debug your app across multiple browsers and devices by connecting the Firefox dev tools to other major browser engines. Valence also extends the awesome tools we've built to debug Firefox OS and Firefox for Android to the other major mobile browsers including Chrome on Android and Safari on iOS. So far these tools include our Inspector, Debugger and Console and Style Editor.

Web Audio Editor

Inspect and interact with Web Audio API in real time to ensure that all audio nodes are connected in the way you expect.

Additional developer tools also available in the release build (via F12 key): Responsive Design View, Page Inspector, Web Console, JavaScript Debugger, Network Monitor, and Style Editor.

Firefox channels (development cycle)

Every 6 weeks, Firefox developers take the current stable features of each build and introduce them into the next stable channel for further development. The Developer Edition is a special build containing features never moved forward since they would be rarely used by the average user and needlessly consume resources.

Mozilla Developer Network documentation
Privacy notice

To install Firefox Developer Edition, run the following command from the command line or from PowerShell:

C:\> choco install firefox-dev --pre

To upgrade Firefox Developer Edition, run the following command from the command line or from PowerShell:

C:\> choco upgrade firefox-dev --pre


  • tools\chocolateyInstall.ps1 Show
    $packageName = 'firefox-dev'
    $installerType = 'exe'
    $url = ''
    $checksum = 'bd44025f545a6a4668ebf56ad768a003d8f39fe73a45f2ed53ee74aa1883d10d'
    $checksumType = 'sha256'
    $url64 = ''
    $checksum64 = '08152bbb57488d1c5d82a8e7dc2541a1bb2a76251bb85cf50e331cba611a4222'
    $checksumType64 = 'sha256'
    $validExitCodes = @(0)
    Install-ChocolateyPackage -PackageName "$packageName" `
                              -FileType "$installerType" `
                              -SilentArgs "$silentArgs" `
                              -Url "$url" `
                              -Url64bit "$url64" `
                              -ValidExitCodes $validExitCodes `
                              -Checksum "$checksum" `
                              -ChecksumType "$checksumType" `
                              -Checksum64 "$checksum64" `
                              -ChecksumType64 "$checksumType64"
  • tools\chocolateyUninstall.ps1 Show
    $packageName = 'firefox-dev'
    $packageSearch = 'Firefox Developer'
    $installerType = 'exe'
    $validExitCodes = @(0)
    Get-ItemProperty -Path @( 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*',
                              'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' ) `
                     -ErrorAction:SilentlyContinue `
    | Where-Object   { $_.DisplayName -like "$packageSearch*" } `
    | ForEach-Object { Uninstall-ChocolateyPackage -PackageName "$packageName" `
                                                   -FileType "$installerType" `
                                                   -SilentArgs "$silentArgs" `
                                                   -File "$($_.UninstallString.Replace('"',''))" `
                                                   -ValidExitCodes $validExitCodes }

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Mozilla


© Mozilla Foundation


Release Notes


Overview changelog
Mozilla Developer Network release notes
Source code commit changelog


  • Automatically built and uploaded by dtgm

Version History

Version Downloads Last updated Status
Firefox Developer Edition 54.0-alpha2 1646 Tuesday, March 7, 2017 exempted
Firefox Developer Edition 53.0-alpha2 414 Tuesday, January 24, 2017 exempted
Firefox Developer Edition 52.0-alpha2 357 Monday, November 14, 2016 exempted
Firefox Developer Edition 51.0-alpha2 280 Thursday, October 20, 2016 exempted
Firefox Developer Edition 50.0-alpha2 386 Tuesday, August 2, 2016 exempted
Firefox Developer Edition 49.0-alpha2 283 Thursday, June 23, 2016 exempted
Firefox Developer Edition 43.0-alpha2 541 Saturday, October 3, 2015 exempted
Firefox Developer Edition 42.0-alpha2 383 Thursday, August 13, 2015 exempted
Firefox Developer Edition 41.0-alpha2 419 Wednesday, July 1, 2015 exempted
Firefox Developer Edition 40.0-alpha2 365 Wednesday, May 20, 2015 exempted
Show More

Discussion for the Firefox Developer Edition Package

Ground rules:

  • This discussion is only about Firefox Developer Edition and the Firefox Developer Edition package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or Firefox Developer Edition, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.

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