Top 1 Youtube Video Downloader
Video DownloadHelper 4.9.15
-6,622,494 users
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.
Latest reviews of this youtube video downloader extension：
Easy YouTube Downloader CANNOT download VEVO videos either. That review is false. I love DownloadHelper! They just need to fix the app.
Top 2 Youtube Video Downloader
Easy YouTube Video Downloader 6.8
-2,199,487 users
Fastest, easiest & most reliable free YouTube downloader. Highest sound quality available with M4A, MP3, MP4, AAC, FLV and HD formats! Single click, non-intrusive, direct download button works directly within the YouTube page!
Latest reviews of this youtube video downloader extension：
all was great until from nowhere it started to play commercials
if you add commercials don not ad video ones when people are watching videos…. You will just get people anoyed and not sell anything
Top 3 Youtube Video Downloader
Flash Video Downloader 3.8.8
-1,223,272 users
Flash Video Downloader helps you to download any video (flv, mp4, HD) from YouTube-like, Facebook, Break, Metacafe and more in one click. You can download mp3, music (iPod), avi and more. Download Flash games. Download Helper.
Latest reviews of this youtube video downloader extension：
Does exactly what it’s suppost to, and does it well. however there doesn’t seem to be a way to get rid of the button on any youtube watch page. either way, highly recommended, and works very well 🙂
Related articles
- how to download youtube videos in Google Chrome (videotoolland.wordpress.com)
Video Tool Land 
Good info. With thanks.