You can check the volume of the sound in the volume mixer to make sure that it isn't set too high.

You can try to do some troubleshooting steps:

• http://forums.adobe.com/thread/1018071?tstart=0

• https://support.mozilla.org/kb/keep-flash-up-to-date-and-troubleshoot-problems
• https://support.mozilla.org/kb/flash-crashes-or-does-not-load-firefox-13

There's nothing wrong with the audio - it simply doesn't work on FF. I can view the video/tv just fine - I just can't listen to anything since the audio quality is terrible. Works perfectly on IE. Works perfectly in Google Chrome. The issue is with FF. If I can't fix the issue, will need to switch to a new browser.

Try to clear the Flash local storage and settings.

• Windows Control Panel > Flash Player, click Delete All and Delete Data

Flash Website Storage Settings panel:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html

Global Storage Settings Panel:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html

I have the exact same problem. I discovered it has something to do with the Flash player. I disabled Shockwave Flash 11.3.300.257 and then my audio worked fine again.

So it has something to do with the interaction of FF 13.0.1 and Flash 11.3.300.257

I went to adobe's site and downloaded this version of the flash player and it still seems to work, so hopefully that solves it:

http://get.adobe.com/shockwave/

Adobe has released an updated Flash 11.3.300.262 version for Windows.

You can find the latest Flash player for Firefox on this page.

• http://www.adobe.com/special/products/flashplayer/fp_distribution3.html

Flash Player 11.3.300.262 does not fix this problem. The only way I was able to fix it was to install an older version of the flash player. You can download older versions here:

http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html

I installed version 10.3.183.20 and it seems to be working fine.