Userscripts.org

Prevents/disables autoplay on youtube - does nothing else.

Produce cleaner code for embedding video

Changes the quality setting of flash files.

This script will always enable YouTube Earth Hour 2012.

Automatically redirect to subscription uploads when opening the Youtube homepage. Also automatically selects "Uploads Only" instead of "All Activity" when clicking on a Subscription feed. You can turn off either of these automatic redirects in t...

Automatically set video quality to max!

Watch YouTube with MPlayer/Xine/VLC/etc (any Mozilla plugin that can play flv and mp4). Dynamically resize the player and use the HQ/MP4 streams when available.

Fixed the problem (bug?), that the reply button on youtube comments didn't open the area to write the reply from around 2012-07-12 to 2012-07-25.

Create a new link for each Youtube video by appending the title to the URL.

Blue theme for YouTube. Changes nearly everything to blue... even the icon. Several customizable options just like in Web Styler. Check the screenshot.

Auto-load more videos in YouTube user page . . .

A script that bypasses YouTube age verification without logging in.

This script sets the focus to the video so that the various keyboard shortcuts can be used. Works well with FlashBlock.

In with the Old, Out with the New (YouTube)

Adds links to external sources of the same content, includind trailers on youtube, movie on kinopoisk, torrents on torrentsmd/rutracker and subs on opensubtitles/subscene. Every feature can be enabled/disabled in settings.

Get Download Links for Videos at YouTube

Allows you to hide videos from the my_subscriptions page

Download YouTube videos. Works on user pages too. Hover over any video link on the page for a mini download button! Verified working in Firefox, Chrome, and Opera since version 1.2.4.

Get direct link for embedded videos from different video sites.

Detaches video and places it in a movable window.

Убирает рекламу и ненужные разделы (настраивается), позволяет загружать и изменять размер видео, отображает все комментарии на странице видео, расширяет описание, может предотвращать автозапуск и автозагрузку видео, добавляет выбор HD (High Defini...

Watch trailers on EVERY imdb.com film page - even if "Watch Trailer" button is missing.

Hides the stupid comments on YouTube according to some basic rules.

Turns YouTube URLs into embedded objects (4chan, 4chon.net, 420chan, archives)

Switches to YouTube's HQ version quickly (no reloading)

Embed content inline next to links on a page.

Completely removes the annoying gray playlist at the bottom of YouTube. (In opposition to just hiding it.)

Removes Video-Sidebar from Youtube homepage, maximise the width of the homepage content on old good template of youtube and automatically display all videos

Lets you quickly redo your search on different websites (google.com, amazon.com, wikipedia.org, youtube.com, flickr.com or twitter.com) with a right click in any search box. Also available as a Firefox 3 add-on with better features.

Show youtube videos in high quality.