Tartube - You can download individual videos, and even whole channels and playlists, from YouTube and hundreds of other websites.
Coconvert - Download and Convert Videos and Playlists from Youtube & More
AllTube - Easily download videos from Youtube, Dailymotion, Vimeo and other websites.
Ant Video Downloader - Addon for Mozilla Firefox to download videos from video websites
ThumbZilla - Awesome thumb stomping and kicking action game.
4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.