Rated 3 out of 5 stars

Good idea, but didn't work with All-In-One Sidebar 0.7.16 (FF 13.0.1 / Win 7), where it made the Add-Ons list center or right-justified, not left. 3 stars, but I removed it.

This review is for a previous version of the add-on (2.0.1-signed.1-signed).