infoworld sees firefox users, a lot
Despite IE's near omnipresence we still find Firefox running on nearly half (47%) of the systems sampled. This would seem to bolster our above theory about ancillary IE use: Chances are, if you're running Firefox, it's because you chose to do so and simply prefer it to IE. Within our small community, at least, Firefox is sporting "market" share that's better than half of IE's on the same sample group.