I discovered something new today about audio support in browsers. Read it, learn, and weap about the pitiful support for sound. Firefox version 21 or lower does not support MP3 files in the html5 audio tag. Firefox version 22 or higher does support MP3 files in the html5 audio tag. Internet Explorer 8 or lower does not support MP3 files in the html5 audio tag. Internet Explorer does not support WAV files in the html 5 audio tag. Support for MP3 files in the html 5 audio tag in Internet Explorer 9 or higher is broken. It only works with autoplay. Support for WAV files in Chrome and Firefox is broken. Any WAV file shorter than 20 seconds will not play in Chrome and Firefox.