YouTube Window Fullscreen is a free Chrome extension developed by Florin Große. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory.

This extension allows users to resize a YouTube video to the full size of their browser window. With a simple click of a button, users can make the video take up the entire screen, providing a more immersive viewing experience. This feature is particularly useful for those who prefer to watch YouTube videos without any distractions.

YouTube Window Fullscreen is a lightweight and easy-to-use extension that seamlessly integrates with the Chrome browser. It eliminates the need to manually resize the video window and provides a convenient way to enjoy YouTube content in fullscreen mode.