An anonymous reader writes: Why does market share for a web browser matter? My computer came with IE but I use FireFox for most browsing. Did Microsoft lose? If so, what did they lose? Why would a company that gives something away for free (Mozilla) care if they have 10% of the market share or 90%? I have my suspicions but thought the the slashdotters would be able to give some good information. If you were to put aside features and security (that is a lot to put aside), should I care who developed my browser?