firefox = webmasters worse dream

[Recon]

wow i think there should be a law, i was working on a site, and its expanding vertically, and i put css in the border for 1px border, cause for some reason it wasnt working in html, and firefox does not pick up on css for border and it shows no table, what should i do, redesign my whole site around for just firefox, or make a splash saying use internet explorer, i really think having mulitple browsers it horrible