Comment 1 for bug 874834

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/858466/comments/3 suggests that you have no audio in other browsers, too. Is that accurate? What Ubuntu release (e.g., 11.10) are you using? What version of Firefox (and other browsers) are you using? Do they support HTML 5? Can you give examples of sites with HTML 5 audio that you have tested and are not working? (Please feel free to mark this back from Incomplete to New after answering all these questions -- I can always mark it back Incomplete if more information is necessary.)