"John Lilly, Mozilla's Chief Operating Officer, has estimated
that Firefox, the company's popular open source web browser, is
used by at least 126 million people around the world.
"Firefox's penetration into the market is a popular topic among
technology enthusiasts, but most market share reports don't paint a
clear picture. Many of these reports are done by collecting
statistics from a wide selection of sites, but Lilly points out
that the results can be skewed depending on the types of sites
being used for the data sample..."