See this: http://kb.mozillazine.org/Background_music_does_not_play#Webpage_authors

I went to the page you suggested, and read through it many times. But I am 73 and self-taught in html coding (made myself learn in 2002 when I wanted to make a memorial website for my 16-year-old son), and I don't understand the page you sent me to. Firefox seems to require so many things that the other browsers don't! Every explanation on that page seems to require going to other pages and downloading other plug-ins. Isn't there a simple way to get Firefox to recognize my primitive html coding using bgsound? HELP! Or should I just warn my family and friends not to use Firefox when viewing my son's memorial?

Both object and embed require a plugin. Try this:

<audio src="Stardust.mp3" autoplay>
  <object data="Stardust.mp3" type="application/x-mplayer2" width="0" height="0">
    <param name="filename" value="Stardust.mp3">
    <param name="autostart" value="1">
    <param name="playcount" value="true"> 
    <embed bgsound src="Stardust.mp3" Autostart="True" Hidden="True" Loop="True">
  </object>
</audio>

What that does is try to use a more modern method of playing the MP3 first, and if that doesn't work, uses your object tag for the Windows Media Player, and if that doesn't work, uses your embed tag for whatever other plugin the user might have that can play MP3s. Does it work for you in all the browsers you care about?

Thank you, jscher2000! I copied your entire code, but it produced multiple renditions of the song. First I cut out the <embed bgsound> part, but I could still hear Nat singing on 2 tracks, so then I cut out the <object data> part, and it now works perfectly on all the browsers I have tried. I had also previously downloaded a plug-in for Foxfire. I guess my antique code of <embed bgsound> is of no use anymore. I will have to go and fix my other webpages. Thank you for your help!