I tried with another browser (IE9) to find an advert pop up on the player. As far as I can make out adblock stops the advert in Firefox but also stops the player from working. There is no mention that I can see in any of the blurb that the 'free' version is ad supported.
Actually the Advert is an Optional setting with the component. Either you can enable / disable it from Components - Web Player - Google Adsense
I'm not sure whether you have checked the whole component. If you have checked, You can see that we have separate tab for the Adsense and you will not have to search for it anywhere as it is in our DashBoard itself. Also, seems you have not used our Help Toolbar. If you have used it, you may have got Idea to disable the advert. Anyhow, thanks for your Review.