NetVideoHunter is a Firefox add-on for downloading videos and music from almost all video-sharing sites.
With this add-on, you can easily download videos and music from almost any video-sharing site. For example from: Youtube, MySpace Music, Google Video, Metacafe, Dailymotion, Break, Putfile, etc…
Before download you can preview videos and music in a built-in media player. It has fullsceen and video smoothing capabilities, so you can enjoy videos in fullscreen with better quality even if the websites own player don’t have this features.
Supports Firefox 2.0 – 3.0