Best !!! This script can automatically detect the video download address and add a download button to the play page. Download any video from 10,000 sites for free. Fast and easy to use. Supporting MP4, M3u8, M4V, MOV, AVI, WMV, WEBM, 3GP, FLV, H64, FLA, FLV, RMVB, Magnegt link, torrent files, etc. This is for you !
Youtube MP3 Download Button
Adds a MP3 Download button next to the subscribe button, thanks to youtubeinmp3 for their simple download service (http://youtubeinmp3.com/api/). Based off magnus's youtube2mp3 code. Just used something different as it wont open another tab.
Google Images direct link
NOTE: Since July 2016 this script is unmaintained. It is here just for historical purposes and to let other people fork it. Adds direct links to images and pages in google image search