The Picture-in-Picture (PiP) for All 4 extension allows users to enable the PiP feature while watching videos on Channel 4's All 4 player. With this extension, users can enjoy the convenience of watching their favorite videos in a floating window while multitasking on their Chrome browser.

Once installed, the extension seamlessly integrates with the All 4 player, giving users the ability to enable PiP mode with just a click. This feature is especially useful for users who want to continue watching their favorite shows or videos while working on other tasks.

It's important to note that during ad breaks, the video will pause. Users will need to return to the browser tab playing the video and watch the adverts before playback resumes. This ensures that the extension complies with Channel 4's ad policy.

Overall, the Picture-in-Picture (PiP) for All 4 extension enhances the viewing experience on Channel 4's All 4 player by allowing users to enjoy their favorite videos in a convenient and customizable way.