Have you tried these;

If you have problems with current Shockwave Flash plugin versions then check this:

• see if there are updates for your graphics drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

Hi   !

To solve this problem   iHeart Radio  says to clear the cache:
http://support.mozilla.org/en-US/kb/how-clear-firefox-cache#w_clear-the-cache
Good luck and let us know if it worked   !

Thanks everyone , no luck yet. I happened to view some of the posts on the iHeart page in the Facebook frame and noticed there were a couple of others having issues, iHeart invited them to tell them the particulars but don't think anyone did. I do not have an account so I couldn't post.

Thanks again

Don

Hi   again   !
Clearing the cache didn't work then,   eh   ?   Bummer   !

No but thanks. Like I mentioned the volume control slider does not move so it seems to be a Flash problem and the way the browser is interpreting the page. If I had some idea of what else to look for in the debug tools I could offer some more information. My knowledge is limited more to basic Html , not so much with script , minimal experience with Dreamwaver etc..

Thanks Don

'Couldn't let it go yet and searched some more;   the only thing I could find that made any sense to me is:   disable   Adblock   or   Adblock Plus,   but your system details doesn't mention   Adblock   ......
Shot in the dark:
https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues

It works again !!

I just clicked my bookmark and it worked just like it used to. Just FM (fricken magic)

Thanks everyone who took the time and effort to answer.

I do appreciate it !

Don