Apparently Google does not allow Chrome extensions that let you download YouTube videos, seems like a nice precedence.
Looking at popularvideo downloaders gets you things like Video Downloader professional: "Caution:
The download of YouTube videos to hard drive is locked because of restrictions of the Chrome Store."
Looking at popularvideo downloaders gets you things like Video Downloader professional: "Caution: The download of YouTube videos to hard drive is locked because of restrictions of the Chrome Store."