Fullish Youtube is a free Chrome add-on developed by na2793 that aims to enhance the Youtube viewing experience by optimizing the display of videos. This add-on automatically adjusts the size of Youtube videos to fit the window size when the window width is less than 1000px, ensuring that users can enjoy their favorite content without any inconvenience.

One of the key features of Fullish Youtube is its ability to hide or show the menu bar with a simple toggle button. This feature allows users to maximize their viewing area by removing the distractions of the menu bar when they want to focus solely on the video. With just a click, users can easily switch between a full-screen view and a view with the menu bar visible, providing them with greater control over their Youtube experience.

Overall, Fullish Youtube is a convenient Chrome add-on that offers a seamless and immersive Youtube viewing experience. Its ability to automatically adjust video size and toggle the menu bar provides users with a more customized and enjoyable way to watch Youtube videos.