Downloads of v 25.2.1:


Last Update:

01 Jun 2016

Package Maintainer(s):

Software Author(s):

  • Moonchild Productions


fossamail email news thunderbird palemoon admin


This is not the latest version of FossaMail available.

  • 1
  • 2
  • 3

25.2.1 | Updated: 01 Jun 2016



Downloads of v 25.2.1:



Software Author(s):

  • Moonchild Productions

  • 1
  • 2
  • 3
FossaMail 25.2.1

This is not the latest version of FossaMail available.

  • 1
  • 2
  • 3

Some Checks Have Failed or Are Not Yet Complete

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Failed


Scan Testing Successful:

No detections found in any package files


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


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


To uninstall FossaMail, 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 fossamail -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 fossamail -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 fossamail installed
    name: fossamail
    state: present
    version: 25.2.1
    source: STEP 3 URL

See docs at

chocolatey_package 'fossamail' do
  action    :install
  version  '25.2.1'
  source   'STEP 3 URL'

See docs at

    Name: fossamail,
    Version: 25.2.1,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller fossamail
   Name     = 'fossamail'
   Ensure   = 'Present'
   Version  = '25.2.1'
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'fossamail':
  provider => 'chocolatey',
  ensure   => '25.2.1',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install fossamail version="25.2.1" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

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This package was approved by moderator dtgm on 01 Jun 2016.


FossaMail is an open-source, Mozilla Thunderbird-based mail, news and chat client for Windows and Linux, brought to you by the Pale Moon developers (and therefore not affiliated with the Mozilla Corporation). It is an alternative version of the Mozilla Thunderbird mail and news client, and based on the Pale Moon browser core.


  • Is built from source with compiler optimizations geared towards an as stable and smooth operation of the client as possible (Pale Moon-alike optimizations).
  • Uses the Pale Moon browser core as its back-end. The client is therefore based on Pale Moon rather than other Mozilla-derived mail clients.
  • Uses its own profile folder on your system. This means it will not interfere with existing Thunderbird installations.
  • The default profile location is %APPDATA%\FossaMail
  • Should be compatible with all Thunderbird (v24/25b era) add-ons and plugins.
  • Is available in 32-bit (x86) and 64-bit (x64) versions.

$InstallArgs = @{
  packageName = 'fossamail'
  installerType = 'exe'
  url = ''
  url64 = ''
  validExitCodes = @(0)

Install-ChocolateyPackage @InstallArgs
$packageName = 'fossamail'

$RegistryLocation = 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall'

# different key for 32-bit installs on 64-bit systems
$BitLevel = Get-ProcessorBits
If ($BitLevel -eq '64') {
   $RegistryLocation = 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'

$unexe = Get-ItemProperty "$RegistryLocation\*" | 
                     Where-Object { $_.displayname -match 'FossaMail'} |
                     Select-Object -ExpandProperty UninstallString

if (Test-Path $unexe) {
  $UninstallArgs = @{
     packageName = $packageName
     fileType = 'exe'
     file = $unexe
     validExitCodes = @(0)
  Uninstall-ChocolateyPackage @UninstallArgs

} else {
  Throw "$packageName uninstaller not found!"

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
FossaMail 38.1.0 337 Friday, March 24, 2017 Approved
FossaMail 38.0.0 305 Friday, March 10, 2017 Approved
FossaMail 27.0.0 378 Monday, February 6, 2017 Approved
FossaMail 25.2.4 438 Wednesday, November 16, 2016 Approved
FossaMail 25.2.1 309 Wednesday, June 1, 2016 Approved

This package has no dependencies.

Discussion for the FossaMail Package

Ground Rules:

  • This discussion is only about FossaMail and the FossaMail 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 FossaMail, 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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