YouTube Picture-in-Picture for Chrome Lets You Browse and Watch at the Same Time
Chrome: The Picture-in-Picture mode used by the YouTube app for iOS and Android is a great way to continue watching YouTube while a video is playing. The YouTube Picture-in-Picture extension adds this functionality to Chrome on the desktop.
The extension works pretty much as you’d expect. Find the video, right-click the link, then select Picture-in-Picture to start playing in a small window in the corner. Or click the video, then click the back button to automatically switch it to PiP mode. Unfortunately, the video will stop playing as soon as you leave YouTube, but this is very useful if you want to add the same functionality as the mobile apps in Chrome.
YouTube Picture-in-Picture | Chrome Web Store via The Next Web