Idiot blocks Firefox, Firefox users tell idiot to take his site and shove it.
Some idiot and possible Microsoft shill set up a website at whyfirefoxisblocked.com (WARNING 509 Bandwidth Limit Exceeded) explaining that he had to block popular open-source web browser Mozilla Firefox because of the popular Adblock extension, and gave some horribly misleading and incorrect legal reasons that adblock is illegal. I believe that, while a webmaster is certainly welcome to block users that he/she believes are blocking ads, such a measure is counterproductive due to the backlash that might occur and the ease with which a user can work around such a measure. In addition, any site that does this sort of thing probably believes that content is what you put between all the ads.