That's a clever way to get a lower bound for power users. I'm surprised. But also, I did qualify my statement and said people who install firefox. I wonder how many of those 200 million users did, or how many of them had it installed by some power user who set up their computer. I know there are at least a couple dozen people right now who are Firefox users because I installed it and put it front and center on the computers I built or setup or fixed for them.