Userscripts.org

Download Link + Quality Selector + Rollover Preview + Media Controller + Media Resizer + More...

Adds a lyrics box to the YouTube sidebar under the video informations box. It can search in eleven different lyrics sites and it shows also all the results in a drop down.

Turn the lights out for easier watching of YouTube videos!

The best YouTube script. I know it, and you know it.

Adds &fmt=18 to all YouTube links

Adds FLV, MP4, 3GP, and 720p download links to YouTube.

Automatically shows the full description on YouTube video pages.

Stop Autoplaying Video On YouTube Profiles

EN: Plays related YouTube videos automaticaly. DE: Spielt ähnliche YouTube-Videos automatisch ab. currently broken.

Makes links show the full name of the video in the text

Automatically Scale YouTube ect.. to Largest Possible Size & HQ/HD Quality Video. Scroll down to read comments without missing video, more...

Prevents videos from playing automatically by replacing the default youtube.com player with the youtube player that doesn't autostart playback

Removes ads and unwanted sections (configurable), allows downloading and resizing videos, changes the default video quality, expands the description and the video size, can prevent autoplay and autobuffering, etc...

For now, blocks comments which are of lesser quality.

Gets right of the footer, copyright, google ads, big frontpage ad, side announcement box, "may not be suitable for minors" warning, and other annoyances.

Click a button to stop the video's loading and playback and click it again to start it over

Pick a user, and this script will automatically watch random videos from that user until you tell it to stop via user script command

Autoplay is disabled and it buffers the video .

Filter YouTube search results based on time (+/- 1 second)

Enable a seek time anchor (#1h3m20s) ala Google Video in YouTube urls

Removes ads and unwanted sections (configurable), allows downloading and resizing videos, changes the default video quality, expands the description and the video size, can prevent autoplay and autobuffering, etc...

Music Player for Youtube

This hack will eliminate the need of Javascript for playing clips on YouTube site. (Handy if you have NoScript extension on)

Removes ads and unwanted sections (configurable), allows downloading and resizing videos, changes the default video quality, expands the description and the video size, can prevent autoplay and autobuffering, etc...

mouseover to animate thumbs

Food your stats Monkey! This script shows delta values (if any) within Youtube Account section. Youtube.com multiple accounts supported - Tested and working on Google Chrome through TamperMonkey.

Take youtube back, force it to search for worldwide contents! This script is Opera - compatible. Also working on Google Chrome with TamperMonkey.

Remove annoying default language box.

This userscript will allow you to skip to a specific point in a youtube video.

***IMPORTANT***: AT THE MOMENT IT DOESN'T WORK: YOUTUBE HAS CHANGED ITS LAYOUT AND THE SCRIPT NEEDS TO BE MODIFIED. Inserts a donwload box in the description of the video ( only for Firefox - Greasemonkey ).