Could be depending if his browser is set to do that automatically, which is probably what it is.
I can't view it and just have the message that I need to down load a Plug IN.
In Fire Fox, it is under: Tools/Options/Security/Warn me when sites try to install Add ons.
If that box is not checked, it may just down load what it thinks you need willy nilly.
I unchecked the box and didn't see the message in post #17 any longer, yet it didn't try to install the Plug IN. In the Exceptions Box to the side, it stated that Mozilla is now allowed to install add ons.
But I also use Ad Block Plus so that may also be doing it's job on the side.
Yep, I checked Ad Block and it has Cue Table automatically blocked, so I have to give it permission to install the Plug In.
Give that a whirl Buddy and see, cause it's nothing that can be controlled from the AZ side. It's on you.
I have read where people tend to get a ton of annoying Pop Ups while watching a Pool Stream. I have never gotten one.
If you are not using Ad Block with Fire Fox, it is a great little unobtrusive App.