Userscripts.org

Download Youtube Videos (HD 1080p & 720p/HQ MP4, Mp3, FLV, 3GP) Dailymotion (HQ MP4, FLV), Magavideo (HD/HQ FLV) Google (HQ MP4, FLV), Vimeo (HQ MP4) Break (HQ MP4, FLV), Veoh (HQ MP4, FLV), Metacafe, Spike, Myspace, Facebook, Current, Redtube and...

Watch videos from video sharing web sites without Flash Player. You can view the videos with a classic video plugin or with HTML5's video player. A download option is also available.

Download videos from video sharing web sites.

Fixes things like double spaces and newlines (even though you can't see newlines, it messes up fields when you try to login)

Prevents long words, like URLs, from stretching the page.

Provides useful links to search engines based on the page that you're viewing or the search that you're performing.

Watch online videos without any distractions like ads, chats, comments, etc.. Options: Auto browser resize, video scale, custom background color, comments on/off, related videos on/off, download videos, +70 video sites. Updated June 17th

auto-embeds the video file, enlarges it, and provides a link to download the video. supports 57 websites (incl. embed-disabled youtube videos). auto-checks for updates to the script weekly.

Allows you to ask multiple sites for a download link using simple button interface. Sites include Youtube, Megavideo, Veoh and more.

Removes anoying ads and play the video directly in the player.