Great, great add-on, but does not work with latest beta (50) Rated 5 out of 5 stars
I missed this so much, I reverted to TB45This review is for a previous version of the add-on (4.5).
Thunderbird 50 compatibility is coming...
... there is already a bug fixed beta version here:
I recommend waiting for the official release of QuickFolders 4.6 - we are just in the process of moving the web site, and will release once that's complete!