Rated 5 out of 5 stars

I love this add on, but what I'd like to have is the ability to be able to wrap my icons so that they continue in multiple rows, instead of disappearing to the right of my toolbar. The effect would be the same as Firefox's "Multirow Bookmarks Toolbar", except this would be for Thunderbird's Toolbar button. Is there an insider (config) way to make this happen, or has someone written an extension that can accomodate this?

This review is for a previous version of the add-on (0.6.0.8).