Rated 1 out of 5 stars

Installed it. Nothing happened. No clue as to how to make anything happen. Can't drag and drop folders. Can't find any other way to reorder folders. No clues in documentation as to a hotkey or where to find a menu. Right clicked everywhere, looked in options. Nothing, nada, zilch.

This review is for a previous version of the add-on (1.1.1). 

The addon listing features, in bold, as the first sentence in the description "This extension adds a "Manually Sort Folders" entry in the "Tools" menu of Thunderbird.".

Furthermore, if you use the standard procedure (Tools > Add-ons), you'll find that the addon's preferences button also opens the right dialog.