I added #bottomban to the list of blocked things and it seems to work to keep the bottom ads from being viewed. The sidebar ad is a little harder to get rid of since it doesn't have it's own div id in css.
Edit:
Wait... Firefox is very simiar to opera, but the ad blocking is in a different spot. Remember the content blocking option that you did on the neopets website? When you go to content blocking on any neopets page, go to details on the top bar, and add these sites. (found on the jellyneo ad block list)
http://images.neopets.com/buttons/*
http://images.neopets.com/728ads/*
http://images.neopets.com/ads/*
http://neopets.com/ads/*
http://www.neopets.com/ads/house_ad.phtml
http://*.tribalfusion.com/*
http://*valueclick.com/*
http://images.neopets.com/buttons/*
http://*.burstnet.com/*
http://*.adknowledge.com/*
http://*.adecn.com/*
http://*.maxserving.com/*
http://*.yieldmanager.com/*
http://*.tradedoubler.com/*
http://*.doubleclick.net/*
http://*.advertising.com/*
http://pagead2.googlesyndication.com/*
Not only does it block the css, but doesn't let the images load) So super fast browsing for opera users.
