After monitoring traffic to fumbled.org over a period of three days which included 562 visitors, stats show that 21 percent of the browsers used by the visitors to view the site was FireFox 2.0.0.  By blocking FireFox to a site you will lose 21 percent of your traffic. If you are into ecommerce- you could potentially lose 21 percent of your revenue. Blocking FireFox is like saying you will not sell products to immigrants.  Here are the stats:

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And why does’nt anyone update their IE browser to IE7?????