Script Summary: Enhances YouTube's HTML5 player. Some features: additional keyboard shortcuts (including navigation); fix player bugs; control autoplay and auto fullscreen; informational text overlay on video. Customizable (except for the key shortcuts).
Version: 2011-07-28
Note: I have stopped working on this user script, and it is partally broken with any current versions of YouTube. See this thread for details. The autoplay stopping still works, which is a useful part of the script, but this script is more recommended for that.
This script adds a few improvements to the YouTube HTML5 player, like the addition of many shortcut keys, bug fixes and an informational text overlay.
Features
- Many new useful keybindings (see below).
- Neat overlay that displays the video time, speed or other status when you press the appropriate keys. Useful in fullscreen mode.
- Clicking on times in comments (like "6:04 Haha look at that") will make the player navigate the video to that point (except in Firefox, planning to fix).
- Pause videos on page load if you desire so.
- A configuration panel that lets you change some of the settings to your tastes.
- Automatic full-screen option when the video loads.
Key bindings
Note: for these keys to work, the video player needs to have focus. Click anywhere on the video player to give it focus.- Space bar pauses and resumes video, even in Firefox.
- (BROKEN ATM) Left and right keys to seek in steps of 3 seconds.
- (BROKEN ATM)Shift+left and shift+right seeks in steps of 15 seconds.
- F and Esc toggle the video fullscreen mode.
- - and [ keys slow down the video in increments of 0.2 times (customizable).
- + and ] keys speed up the video in increments of 0.2 times (customizable).
- Keys = and \ reset the video speed to 1x.
- Keys 0 to 9 navigate through the video (from 0 to ~90%).
- . will reset the video to 0 and pause it.
- Key M mutes/unmutes the sound.
- Key T shows the video's current and maximum time (if overlay is enabled).
Browser Compatibility
Works (verified by author):
Chrome (with Blank Canvas or Tampermonkey)
Firefox 4
Untested in latest version:
Apple Safari
Opera
Not compatible:
Mozilla Firefox 3.6 - Works theoretically, but FF 3.6 only supports Theora video and YouTube never uses that codec.



