Mozilla isn't an *upgrade* if you're using a different browser. I absolutely HATE the term "upgrade" where used instead of "migrate". For the record, Mozilla does NOT have a non-graphical browser. Besides that, not supporting CSS is a right that browsers have and you are not to tell me what to use. A good website maker makes a site usable for any browser. And CSS makes that easy if used right, so stop complaining.
Note that I have seen your ";-)", but needed to say this because it's the third time I see someone suggesting something like this today.