I have no audio on firefox. I have audio in other programs but not firefox. I have tried different websites, and yes I did double check to make sure the website was not muted, and still nothing. I have cleared the cookies, and history. I have restarted firefox. The recommenced performance settings, which in my search for answers says should be turned off if you don't have audio in firefox, is already turned off. I had this problem before and forget how I solved it but it seems firefox just seems to randomly shut off the sound.