Feature Policy Control is a free Chrome add-on developed by Polywocker. This program allows users to control and override Feature-Policy response headers based on the URL. With this add-on, users can bypass Picture-in-Picture blocking and perform various testing tasks.

One of the main features of Feature Policy Control is its ability to modify response headers depending on the URL. This allows users to override Feature-Policy restrictions and access certain features that may be blocked by default. For example, users can enable Picture-in-Picture mode on websites that have disabled it.

It is worth noting that only one extension can modify response headers at a time. Therefore, if Feature Policy Control is not working as expected, users are advised to disable other extensions that may interfere with its functionality.

With its ability to control and override Feature-Policy response headers, Feature Policy Control offers users greater flexibility and control over the features they can access while browsing the web.