Block Toolbars in Chrome and other browsers using GPO

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I am looking to block the primary user of a computer I manage from installing toolbars in Chrome and Edge. I started out by installing the Administrative template for Chrome into the %systemroot%\PolicyDefinitions and %systemroot%\PolicyDefintions\en-US folders.

As you can see by the attached image, I am in the Group Policy editor and cannot find where to go from here. Multiple Google searches did not provide any help.

The computer is not connected to a domain since it is the only computer I manage. Is this possible to configure using only a Local Group Policy or a Local Security Policy?

Thanks,
Chris

@Bedrock1977,

You are on the right track! You can control what extensions are allowed in both Google Chrome and Edge Chromium using the local GPO.

You have the administrative templates for Google Chrome, you will need the administrative templates for Edge Chromium. You can get them here.

https://www.microsoft.com/en-us/edge/business/download

Choose your channel/build and click the Get policy files link. Then import the ADMX\ADML files.

The way to block extensions is to add an asterisk (*) to the block extensions list. This will block all extensions. Then, if there are extensions you want to allow, like LastPass, you can add them to the extensions whitelist.

Google Chrome:

Edge Chromium:

Thanks, Mike! This is a big help.

If I need to create a new thread for this, please let me know. When you are managing a local computer, and the primary user is naive when it comes to all things security, how would you secure the desktop, so she does not get in trouble?

The old computer pretty much gave up the ghost. The new machine has a fresh copy of Malwarebytes Premium as well as a new installation of Windows 10 Professional. As you know, I can now use Group Policy to control certain aspects, which I was never able to do before.

@Bedrock1977 ,

Sorry I missed the question in your response. Let's start a new thread for this topic.