These computer topics have a way of drawing out strong feelings. Makes pens, finishes, etc. look like wimpy subjects in comparison. Oh, well.
Ron asked: "Where do you get your numbers from Frank?"
I read, including business pages, tech sections in magazines and newspapers. Something with China and the internet was published recently and that almost 100% to almost 0% (world-wide) was mentioned. But, admittedly, reports are appearing that state a lot of experimenting is happening with FF and others due to security scares. I understand that. But it doesn't mean IE is less secure. It just means the bad guys are going after the big fish. If you are the big fish in the pond, it is natural they would ignore an minnow one ten-billionth the size.
That said, I favor competition. If FF ever starts making serious inroads into the market, I may try. But not without a compelling reason. MS has the resources to stay ahead of the market. Whether or not you like that, it is a fact of computer and business life. I predict they will remain the big fish for many years.
However, MS is not bullet proof against competition. Just a couple years ago they had 98% of the OS market. Today it is 96% and declining. Their hold on OS for servers is being strongly challenged by Linux.