Silent install command for Mozilla Firefox ESR (oc) 140.11.0

The exact silent switches the Mozilla Firefox ESR (oc) installer accepts, plus a one-line command you can paste into a script, Intune Win32 app, or Configuration Manager package.

One-line silent install (x64, machine scope)

Firefox%20Setup%20140.11.0esr.exe /S /PreventRebootRequired=true

Run from the directory containing Firefox%20Setup%20140.11.0esr.exe. Download the installer from the Direct link below first. Run an elevated terminal (Run as Administrator) for machine-scope installs.

Architecture	Scope	Type	Source
x64	machine	EXE NSIS	Declared by publisher
arm64	machine	EXE NSIS	Declared by publisher
x86	machine	EXE NSIS	Declared by publisher

Declared by publisher means the switches come straight from the winget manifest the publisher (or community maintainer) submitted to microsoft/winget-pkgs.
Default for {type} means the manifest doesn't specify silent switches, so the framework's standard switches are shown (e.g. /S for NSIS, /quiet /norestart for MSI).

Frequently asked questions

What is the silent install command for Mozilla Firefox ESR (oc)?

Mozilla Firefox ESR (oc) uses EXE (NSIS). After downloading the installer, run: Firefox%20Setup%20140.11.0esr.exe /S /PreventRebootRequired=true. The silent install switches are /S /PreventRebootRequired=true.

How do I deploy Mozilla Firefox ESR (oc) via Intune or Configuration Manager?

Use winget for the cleanest path: winget install --id Mozilla.Firefox.ESR.oc --exact 140.11.0 --silent --accept-package-agreements --accept-source-agreements. If winget isn't viable in your environment, package the publisher's installer directly using the silent switches above.

Where do these silent switches come from?

The switches marked "Declared by publisher" come from the winget manifest the publisher (or community maintainer) submitted to microsoft/winget-pkgs. Switches marked "Default for EXE (NSIS)" come from the installer framework's documented defaults.

Prefer the winget route? See the full Mozilla Firefox ESR (oc) install page.