[HalfPint]

I've used an loved ad block plus for a long time. Works just fine in FF3. Just remember, when you go to install it, don't erase the previous version, just let it install over top of it, it will just update the files that need updating and keep your preferences, bookmarks, customized tool bars, addons, themes and plugins. After done installing it will pop up a box that says 'checking for compatability of addons" and it will check them to see if they work with FF3 and if they don't it will pop up a box saying "do you want to check for updated, compatable version?" click "yes" and it will find up to date vesions, all my addons still work and so does my theme, it just had to download new versions of them. It only had to update 1 or 2 addons and then re-download my theme, the previous versions only worked up to FF2, and I have about 6 addons, so I thought that was pretty good.

(I have been having a slight problem with firefox 3's spell checker, however, it doesn't want to work all the time, odd, I'm going to try to report it though)