Mozilla Firefox is, by far, my favorite browser on the PC, and I’ve used it (previously as Firebird) almost exclusively on my Mac at work for the last 5 months as well but alas, no more. I cannot figure out why, but it is several times slower than Safari on my 1.6 ghz G5. I can have the two browsers open side by side and Safair will have loaded a page with all it’s graphics before Firefox finishes saying “Resolving Host.” So, until something changes, farewell Firefox.