Click the extension icon to see metrics for the page that you're currently on. FID and INP are only available after interacting with the page, for example by clicking on it.
Quickly test your site using PageSpeed Insights, Treo, or WebPageTest.
If you're logged into a DebugBear account you'll be able to quickly navigate to the monitoring results for the current page.
By default, Lighthouse runs page tests on a fast connection and then applies a simulation to estimate how fast the page would have a been on a slower connection.
The Site Speed extension surfaces the original observed metrics that were collected by Chrome before throttling was applied.