To begin, you need the official policy files provided by Mozilla. These are typically bundled within the Firefox for Enterprise packages. Visit the official Mozilla GitHub Policy Templates page. Locate the latest release (usually at the top). Download the .zip file containing the ADMX and ADML files.
Extract the contents to a local folder on your Domain Controller or management workstation. Step 2: Install Templates to the Central Store download firefox group policy templates
For the policies to appear in your Group Policy Management Editor, the files must be placed in the Windows PolicyDefinitions folder. To begin, you need the official policy files
Open the language folder (e.g., en-US ), copy the .adml files, and paste them into the corresponding language folder in C:\Windows\PolicyDefinitions\en-US\ . Step 3: Configure Your First Firefox GPO copy the .adml files