Last month, Microsoft released an extension for Google Chrome, which enabled to view of H.264 HTML5 video playback and now, Google has decided to return a favor to Microsoft by offering WebM plugin for IE9 users. However, Google has already made announcement that it would be dropping support for H.264 video for Chrome. But, there are still many- big players in the browser arena that are not going to drop his kind of support.
As, Microsoft is still standing far behind MPEG-LA’s codec support but it is making sure to provide support for chrome users to view HTML5 video which are encoded with it. WebM plug-in will help IE9 user to view all the WebM videos which are popping up.
To download WebM plugins, head over to this page.