Opus demo

Firefox logo

Since May 5, 2012, Firefox 15 has had support for playing Opus files in HTML <audio> and <video> elements.

Opus is a new audio codec we hope will become a new standard for audio on the web. Features include:

If you see play links below, your browser supports Opus!

Here's a longer musical sample.

Paper Lights by Ehren Starks Creative Commons License

You can also try loading an opus file directly. Like this one from our test suite.

Firefox 15 became the stable release on August 28, 2012. If your version of Firefox is up to date, the demonstration above will work for you.

If you don't have the latest Firefox, you can get it here. The demos will also work in more recent versions of Chrome.