Rated 2 out of 5 stars
Unfortunately, the standard identity when COMPOSING can only be set based on Account, not based on Folder.This review is for a previous version of the add-on (1.4.3).
Rated 4 out of 5 stars
Great add-on, but unfortunately not compatible with (of all things) the Folder Account extension...
So, either you get the identity you want when composing mail (through the Folder Account extension), OR you get the identity you want when replying (through the Correct Identity extension).
You can't have both, unfortunately...