Thanks for your reply. BetterTTV's emote menu does have the ability to be scrolled, so if you are not able to scroll it then it sounds like there could be a bug. If problems persist please file an issue over on our bug tracker at https://github.com/night/betterttv/issues

We had shipped a bad release but did iron out these issues. If you're still having issues, try reinstalling the extension from the Firefox add-ons site to get back to a stable build.