How it Works: HD Video Downloader is a great extension for downloading video and audio files from websites like Facebook, Vimeo, YouTube, soundcloud, Vkontakte, Blip, Metacafe, Break and lots of others.
To start downloading just click the link that is automatically created for video or audio you’re currently playing in the address bar next to omnibox.
Supported Formats: Video qualities for 240p, 380p, 480p, 720p, 1080p are supported.
Important Notice select 1080p video quality from Youtube player and make sure that video is playing in HD then click the download icon to download 1080p video.
Sometimes it doesn’t work with embedded videos, in this case you'll have to go to original website hosting the video and download it from there.