Richard4168: Iron is still to new and some of the features don't work like the bookmark manager, and the full screen option as stated in the Iron forums.
Using Iron for anything other than the game client defeats the purpose. A no frills dedicated browser for nothing other than playing the game gives excellent results. No plug ins, no active links, no nothing-just the game client.
My full screen view of the game has about 1/2" of dark space on either side. Top to bottom is all game. I seriously recommend using any of the other browsers for day to day stuff and keep Iron pristine for the game. It really works well.