I know being in marketing I probably shouldn't be encouraging something that blocks ads... but I just installed it and it does an awesome job of speeding up page load time on certain sites and ad-heavy forums
it's also interesting to see which ads it blocks on my own sites... most of mine show up fine (with the exception of some piddly adsense crap)... of course, I have the habit of naming my banner ads strange names and such... so maybe that helps... gonna have to dig through the filter rules today...
you might want to install it, just to check and see if your ads are displaying on your own sites...
here ya go:
https://addons.mozilla.org/en-US/firefox/addon/1865