I like it. You should add in links to templates/add-ons for Firefox and such. You should also create a commenting and rating system to interact with the users. This is just my opinion, but the site felt a little steril.
Very cool idea, and you can bank on that domain. With a little TLC, that can be a valuable URL...
The site looks much more interactive now. Some other feedback would be; on the home page, in the Opera Module at the top, your text is center aligned, and the Firefox module is left aligned. It makes the site look lop-sided. I think making that small change would make the site more visually appealing.
Maybe you could add rss feed from mozilla.org and such (create a news section). If you do, you should use feedgator, because it places the feeds directly into the content so you always have new content with very little work. It'll help a little with SEO too. You could be a hub of information for browser lovers.