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Firefox - Install Extension

Summary​

This script can be used to install and optionally enforce an extension in Mozilla Firefox.

Time Saved by Automation: 5 Minutes

Sample Run​

Sample Run

Dependencies​

Variables​

  • @PS1DataLog@ - Helps to verify if the script actually succeeded.
  • @PS1ErrorLog@ - Helps to track the failure of the script.

User Parameters​

NameExampleRequiredDescription
-ExtensionNameGrammarlyTrueThe name of the extension from the URL to install into Firefox.
-Mandate1FalseUse this switch to prevent the removal of the target add-on in Firefox.

Process​

The script first confirms that Firefox is installed in one of two locations:

  • $env:ProgramFiles/Mozilla Firefox
  • ${env:ProgramFiles(x86)}/Mozilla Firefox

If firefox.exe is not found in either location, the script will exit.

The script then makes a call to the Firefox Add-ons API to determine the GUID of the add-on. This will be either a standard GUID format or an email address. If the GUID cannot be parsed, the script will exit.

The script will then create the $env:ProgramFiles/Mozilla Firefox/distribution folder if it does not exist.

Next, the script checks if a policies.json file already exists in the distribution folder. If it does not, a new file is created with the proper deployment settings based on the parameters, and the script exits. If the file does exist, multiple sub-level checks occur to ensure that no existing data is removed, and the new settings are merged with the existing settings in a new policies.json file.

Output​

  • Script log
  • Local file on the computer