This new tab extension demonstrates how extensions can provide users the option to enable an additional feature. In this example, they optionally display top sites.

See Optional permissions to learn more.

Follow the instructions to load an [unpacked extension](https://developer.chrome.com/docs/extensions/mv3/getstarted/development-basics/#load-unpacked, then open a new tab.

It should look like this:

Then, click on "Allow Extension to Access to top sites". You will see the following message:

If you accept, it will display a list of your top sites.