Bug with scrolling. Rated 4 out of 5 stars
This really adds a lot more available smilies, but if your default folder contains too many smilie .gifs, the scrolling bar doesn't work. Otherwise, it's nice to have more smilies than Thunderbird makes available by default. Also, it needs to be updated so that it's compatible with TB2. When I used Mr. Tech Local Install to override the version compatibility, Smilie Inserter seems to work just fine with TB2.