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Last Update:

27 Oct 2016

Package Maintainer(s):

Software Author(s):

  • Mozilla


browser mozilla firefox alpha admin

Firefox Nightly

This is a prerelease version of Firefox Nightly. | Updated: 27 Oct 2016



Downloads of v



Software Author(s):

  • Mozilla

Firefox Nightly

This is a prerelease version of Firefox Nightly.

All Checks are Passing

2 Passing Test

Validation Testing Passed

Verification Testing Passed


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


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


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


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

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • 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. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade firefox-nightly -y --source="'STEP 3 URL'" [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-nightly -y --source="'STEP 3 URL'"

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

Exit $exitCode

- name: Ensure firefox-nightly installed
    name: firefox-nightly
    state: present
    source: STEP 3 URL

See docs at

Coming early 2020! Central Managment Reporting available now! More information...

chocolatey_package 'firefox-nightly' do
  action    :install
  version  ''
  source   'STEP 3 URL'

See docs at

    Name: firefox-nightly,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller firefox-nightly
   Name     = 'firefox-nightly'
   Ensure   = 'Present'
   Version  = ''
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'firefox-nightly':
  provider => 'chocolatey',
  ensure   => '',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install firefox-nightly version="" source="STEP 3 URL"

See docs at

5. 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 Nightly builds are under active development and should be used only by advanced users for testing experimental features.

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 policy

$packageName = 'firefox-nightly'
$installerType = 'exe'
$url = ''
$checksum = '59cba4aafe7a216381bcf26f3e16a6bd4b9b50886f9f4ff7d5c91a25bc90914a'
$checksumType = 'sha256'
$url64 = ''
$checksum64 = 'ae377a90e410bab9067aac5a6401b10bf218f9c6dc8d311d7a8f05cd400caff2'
$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-nightly'
$softwareVersion = '' -Replace "^(\d+)\.(\d+)\.(\d+)[^-]+-([a-z]).*",'$1.$2$4$3'
$softwareName = "Nightly $softwareVersion*"
$installerType = 'exe'
$validExitCodes = @(0)

[array]$key = Get-UninstallRegistryKey -SoftwareName $softwareName

$key | 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.

Version Downloads Last Updated Status
Firefox Nightly 6 Tuesday, March 9, 2021 Approved
Firefox Nightly 9 Monday, March 8, 2021 Approved
Firefox Nightly 15 Monday, March 8, 2021 Approved
Firefox Nightly 14 Sunday, March 7, 2021 Approved
Firefox Nightly 19 Saturday, March 6, 2021 Approved
Firefox Nightly 12 Saturday, March 6, 2021 Approved
Firefox Nightly 17 Friday, March 5, 2021 Approved
Firefox Nightly 24 Friday, March 5, 2021 Approved
Firefox Nightly 17 Thursday, March 4, 2021 Approved
Firefox Nightly 18 Thursday, March 4, 2021 Approved


Report bugs
Source code changelog


  • Automatically built and uploaded by dtgm
Discussion for the Firefox Nightly Package

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  • This discussion is only about Firefox Nightly and the Firefox Nightly 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.
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  • Tell us what you love about the package or Firefox Nightly, or tell us what needs improvement.
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