CareerCup

Starting point to debug could be:
1. Which player is being used to play the audio in the browser? If it is different between chrome & firefox that could be first good pointer to debug

2. If the player is same, the issue could be 1 level deeper specific to functionality of browser handling of audio files.

Codec support for the Chrome and Firefox to be checked to see what is the potential reason.

What version of firefox is being used? Is it older than what youtube supports?

I could think of two mayjor things going wrong:
- something with the player
- something with the page, like an animation, layout, css property, no idea that is not compatible
--> how, play the video in a page that has nothing else than the HTML5 player, which I think youtube uses. If it plays, then it's the page, if it doesn't probably a codec, player, what ever thing... should be easy to solve
--> if it's the page, good luck, maybe some W3C compatibility check..., place the player in a div that's marked yellow etc. etc. etc... after having some narrowing information, I would defintely try to find somebody who knows more...

anyway what does amazone has to do with youtube ;-)