Man, Firefox is definitely a problem. There are a number of things firefox people haven't been able to use or see in the game.
I have spent all day getting things to work in Firefox that worked perfectly in Opera and IE. What a pain in the butt.
One of the things you should notice is the popup on the nav-computer when you move your mouse over the images. It gives you all kinds of information about the sector. Such as all warplinks, number of planets, last person seen, etc...
Well, all of the templates have been updated so Firefox users can see and use what everyone else has had for the past 1-2 years.