Commands for installing Mozilla Firefox (eo) without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.
Related guide: Silent install switches: MSI, NSIS, Inno Setup · Uninstall a program with the registry or PowerShell
With winget
PowerShell
winget install --id Mozilla.Firefox.eo -e --silent --accept-package-agreements --accept-source-agreementswinget upgrade --id Mozilla.Firefox.eo -e --silentwinget uninstall --id Mozilla.Firefox.eo -e --silentBy installer
64-bit · EXE (NSIS) · All users
Silent install
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=trueCustom folder
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=true /D=C:\Apps\mozilla-firefox-eo- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox
ARM64 · EXE (NSIS) · All users
Silent install
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=trueCustom folder
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=true /D=C:\Apps\mozilla-firefox-eo- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox
32-bit · EXE (NSIS) · All users
Silent install
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=trueCustom folder
"Firefox Setup 157.0.1.exe" /S /PreventRebootRequired=true /D=C:\Apps\mozilla-firefox-eo- Uninstall registry key
- HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox
PowerShell: download, verify, install
Downloads the official file, checks its SHA256 and installs it silently.
install-mozilla-firefox-eo.ps1
$url = 'https://download-installer.cdn.mozilla.net/pub/firefox/releases/157.0.1/win64/eo/Firefox%20Setup%20157.0.1.exe'
$sha256 = 'DE9D83D71AD4AA312CB86DB853CB5DD000813DC776817E2E4E1635F80C6C8EBA'
$file = Join-Path $env:TEMP 'Firefox Setup 157.0.1.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/S /PreventRebootRequired=true' -Wait install-mozilla-firefox-eo.ps1
$url = 'https://download-installer.cdn.mozilla.net/pub/firefox/releases/157.0.1/win64-aarch64/eo/Firefox%20Setup%20157.0.1.exe'
$sha256 = '350AE39443CF3804DEE591FD710280436FF66510ACA52490EF1064441CF70714'
$file = Join-Path $env:TEMP 'Firefox Setup 157.0.1.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/S /PreventRebootRequired=true' -Wait install-mozilla-firefox-eo.ps1
$url = 'https://download-installer.cdn.mozilla.net/pub/firefox/releases/157.0.1/win32/eo/Firefox%20Setup%20157.0.1.exe'
$sha256 = '881758B05BB599E14591591947DB596F15CA29B46F99792103F5C173E5EF17DF'
$file = Join-Path $env:TEMP 'Firefox Setup 157.0.1.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/S /PreventRebootRequired=true' -Wait 
