danielweber7624 / ff-youtube-all-html5

Firefox addon: Play all videos on youtube without flash and control size and quality

YouTube ALL HTML5

With this addon you can play almost any video on YouTube as a HTML5 video. This includes videos with monetarisation enabled which normally don't play in the html5 player, but excludes livestreams which are currently not implemented by YouTube.

Usage

Just install the addon and disable Flash to watch all videos on YouTube using HTML5. If you want to disable Flash only on YouTube, there is an option in the settings of this addon that lets you do so.

The addon also inserts a button right besides the search box that you can use if the automatic playback fails.

The button also includes a menu you can use to change the size of the video. Or use the available option in the settings to change the size automatically.

Note that many videos on YouTube are only available as H264 and thus will only play with newer versions of Firefox. Under windows set media.windows-media-foundation.enabled to true and under linux set gstreamer.enabled to true to enable H264 support.

Attribution

Thanks to Raylan Givens for the hint at emulating IE, Alexander Schlarb for his patch which makes the addon work with firefox's click_to_play, Alex Szczuczko for implementing the "pause on start" function and timendum for his work on embedded videos.

Also thanks to Jeppe Rune Mortensen for his work on YouTubeCenter.

Licence

This addon by Klemens Schölhorn is licenced under GPLv3.
The modified HTML5 Logo by W3C is licenced under CC-BY 3.0.