Downloads of v 50.0-alpha2:


Last Update:

02 Aug 2016

Package Maintainer(s):

Software Author(s):

  • Mozilla


browser mozilla firefox developer admin

Firefox Developer Edition

This is a prerelease version of Firefox Developer Edition.

  • 1
  • 2
  • 3

50.0-alpha2 | Updated: 02 Aug 2016



Downloads of v 50.0-alpha2:



Software Author(s):

  • Mozilla

  • 1
  • 2
  • 3
Firefox Developer Edition 50.0-alpha2

This is a prerelease version of Firefox Developer Edition.

  • 1
  • 2
  • 3

All Checks are Passing

3 Passing Tests

Validation Testing Passed

Verification Testing Passed


Scan Testing Successful:

No detections found in any package files


Deployment Method: Individual Install, Upgrade, & Uninstall

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


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


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


Deployment Method:

📝 NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Enter Your Internal Repository Url

(this should look similar to

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Copy Your Script

choco upgrade firefox-dev -y --source="'INTERNAL REPO URL'" --version="'50.0-alpha2'" --prerelease [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade firefox-dev -y --source="'INTERNAL REPO URL'" --version="'50.0-alpha2'" --prerelease

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Install firefox-dev
    name: firefox-dev
    version: '50.0-alpha2'
    state: present
    allow_prerelease: yes

See docs at

chocolatey_package 'firefox-dev' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '50.0-alpha2'
  options  '--prerelease'

See docs at

cChocoPackageInstaller firefox-dev
    Name        = "firefox-dev"
    Version     = "50.0-alpha2"
    Source      = "INTERNAL REPO URL"
    chocoParams = "--prerelease"

Requires cChoco DSC Resource. See docs at

package { 'firefox-dev':
  ensure          => '50.0-alpha2',
  install_options => ['--prerelease'],
  provider        => 'chocolatey',
  source          => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

Private CDN cached downloads available for licensed customers. Never experience 404 breakages again! Learn more...

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

$packageName = 'firefox-dev'
$installerType = 'exe'
$url = ''
$checksum = 'd4d59cd23fad35c2b8a2af697cf9e7a1abb3f2b5fe69bab4df21faba620dddf2'
$checksumType = 'sha256'
$url64 = ''
$checksum64 = '9df48748d25df584e4ba12af1e18171f25710063c72b10d0e89c37f5e2348c7a'
$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"
$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 }

Log in or click on link to see number of positives.

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.

Add to Builder Version Downloads Last Updated Status
Firefox Developer Edition 95.0.12-beta 320 Friday, November 26, 2021 Exempted
Firefox Developer Edition 95.0.11-beta 136 Wednesday, November 24, 2021 Exempted
Firefox Developer Edition 95.0.10-beta 168 Monday, November 22, 2021 Exempted
Firefox Developer Edition 95.0.9-beta 144 Friday, November 19, 2021 Exempted
Firefox Developer Edition 95.0.8-beta 146 Wednesday, November 17, 2021 Exempted
Firefox Developer Edition 95.0.7-beta 153 Monday, November 15, 2021 Exempted
Firefox Developer Edition 95.0.6-beta 159 Friday, November 12, 2021 Exempted
Firefox Developer Edition 95.0.5-beta 152 Wednesday, November 10, 2021 Exempted
Firefox Developer Edition 95.0.4-beta 154 Monday, November 8, 2021 Exempted
Firefox Developer Edition 95.0.3-beta 162 Friday, November 5, 2021 Exempted

This package has no dependencies.

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.
comments powered by Disqus