http://nightly.mozilla.org/webm/
These builds are for testing purposes only. DOWNLOAD
* Windows 8MB installer
Built on 19-May-2010, Mac, Linux Intel
http://hacks.mozilla.org/2010/05/firefox-youtube-and-webm/
Firefox, YouTube and WebM
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in Featured Article Firefox 4 HTML5 Standards Video
Five important items of note today relating to Mozilla’s support for the VP8 codec have a look
http://www.webmproject.org/users/
WebM video files play directly in your web browser using a new technology called HTML5. No plug-ins are required, but you must install a web browser that supports WebM files. See the instructions below in “How to Play WebM Videos.”
Each browser may choose to include different features of webkit in their final versions, so they are not always the same.
Notes
* Several features have not yet been fully defined, and thus have only experimental support.
* Internet Explorer 9 information is based on early developer information and the Platform Preview.
* Firefox 4.0 (previously 3.7) information is based on features planned for Gecko 1.9.3.
* Safari 4.* information is based on the latest Webkit nightly builds.
* Chrome 5.0 information is based on the 5.0 developer preview.
* Opera 10.* information is based on experimental builds
