Maybe it is particular, maybe not!

Publishing flash content became challenge. Even with swfobject.

First I have tried to use swfobject with static publishing method. It was ok with most of the browsers, but with Opera it introduced the "click to activate" problem. So I have decided to use dynamic publishing method with the drawback the flash wont display on Sony PSP which I can live with.
It was OK for all the cases except for the particular one: firefox, a movie that has to be transparent and the user has to scroll to see it. In that case a behaviour like ‘click to activate’ is present. But I have found a solution: add to the css the following lines:

object:hover {
border:0px solid;
}