If you are looking for a youtube video downloader Chrome extension. It helps to Download videos from youtube and any other website.
Video Downloader professional download and save videos playing on a website to hard disk. It select between different resolutions if the site supports it ( e.g. at Vimeo).
It play found MP4 videos via Google Chromecast on your TV or play it on your Google Home.
There you have quick access to the videos and you can play them at any time, without having to return to the original web page.
You also have the option to play the videos in any size (currently available at selected video providers like Youtube and Vimeo)