A bit more hassle-free than the Greasemonkey script already stickied. You can install an FF add-on called Stylish for CSS codes or go directly down to where FF stores CSS customizations and copy and paste it to there. Code (Text): .adBox, .ad_wrapper, .ad_wrapper_fixed, .adBox2, #ban, #ban_bottom { display: none !important; } .cAdBannerContainer, .bannertop { display: none !important; } Best used in conjunction with Adblock, since this only hides the ads and ad boxes, but it makes everything look nicer (like Premium). Made this about 2 years ago so if there's any ad that still shows up, tell me and I'll update it. Also have some random leftover codes like: make haggle box bigger, neoboard width wider, and some other junk if anyone's interested. :X
I had to neomail a user on how to use adblock.. I installed it just to get rid of the ads on Neopets, even though I have premium... I don't like using the portal often so the stupid Nickelodian one at the top bugs the heck out of me. >/
I know how to do this but only on safari.. so if you use a mac pm me and I'll give you the file that will do it for you