Firefox works great on our school computers, but I don't suppose I have ever tried Java there. I use Mozilla Suite here on Linux, with no Java. I just don't encounter the need to use it. I think Mozilla is great, but I use IE on Windows and on my old Macs. I just use what works for me, so yes as said by others you won't find the perfect browser. It also depends on what you do. If it works, use it.