Do u want to download YouTube Videos and watch it anytime on your computer? U do not want to copy and paste link to download a video. VideoDownloader Firefox Extension add a small icon on the status bar at the bottom of your firefox window, and a toolbar button.

Download YouTube Videos
U can now download YouTube videos using third party website for offline viewing at your own leisure.

1. Visit the YouTube Video you like to download first.
2. Copy the link of the YouTube Video like this one http://www.youtube.com/watch?v=sZgy8gYgFbs
3. Paste this links at the YouTube Videos download site like Video Downloader provided below.
4. It will download a flv file to your computer.
5. You need a flv player to view the YouTube Video.
6. Get the FLV Player by clicking here.

Download and view YouTube Videos Offline
These websites allow you to download YouTube videos and view it offline using a FLV Player. The LeechVideo website allows you to convert the video for viewing on Ipod, PSP and mobile phone.
LeechVideo
Video Downloader
KeepVid
VideoDL

FLV Online Converter
This website allows you to convert the flv videos use by YouTube, Google, Metacafe and others to AVI, MOV, MP4, 3GP online.
FLV Online Converter
Zamzar

Other Video Sharing Website
VidiLife