I was charging for VIP access to my Vbulletin forum membership fee. This fee allowed you a bunch of cool forum stuff, AND having no ads at all to view. While guests and non-vip's have little permissions on the forum and have to view a TON of ads. Except now all the members shared the trick in firefox to disable all the ads. Is there a way I can still make guests and non-vip's view ads in my vbulletin forum? How can you block the Firefox adblock? Is there even a way?