Otra extensión de Firefox: VideoDownloader.

Para bajar películas de outube, Google Video, iFilm, Metacafe, Dailymotion, Myspace, Angry Alien, AnimeEpisodes.Net, Badjojo, Blastro, Blennus, Blip.tv, Bofunk, Bolt, Break.com, Castpost, CollegeHumor, Current TV, Dachix, Danerd, DailySixer.com, DevilDucky, Double Agent, eVideoShare, EVTV1, FindVideos, Free Video Blog, Grinvi, Grouper, Hiphopdeal, Kontraband, Lulu TV, Midis.biz, Music.com, MusicVideoCodes.info, MySpace Video Code, Newgrounds, NothingToxic, PcPlanets, Pixparty, PlsThx, Putfile, Revver, Sharkle, SmitHappens, StreetFire, That Video Site, TotallyCrap, VideoCodes4U, VideoCodesWorld, VideoCodeZone, vidiLife, Vimeo, vSocial, Yikers, ZippyVideos.

[Fuente Pixel y Díxel]