I have built lots of websites... have never had this issue. The site looks decent in Chrome, and on a iphone, but Firefox is all messed up. It seems like it's picking up/reading the tablet size @media css... But it's even buggering that up?!?
The site in question is:
http://magazine.agaaming.com (it's a work in progress)
Take a look with Chrome and Firefox, you'll see what I mean.
Thanks for any suggestions.
Oh, and the site is Wordpress based..