BleepingComputer.com: ff3 and browser games

while playing , the game loads in a second java window from a link to a room from browser, i experience flashes of white light while data is been transfered such as points,,,before all the updates od java firefox and window security updates i used to get a momentary hang,,but now i get the flashes of light when scoring or trying to view others profiles,,,this doesnot happen in ie but i prefer ff3,,if i load the game into original browser ff window the flashing doesnot occur,,so its an issue with a setting that would control the second window,,but i havent an idea about it,,ive optimized the browser but it doesnot control the second window that loads when clicking on a room link