Review for Nostalgy by spaetz
Rated 5 out of 5 stars
Nostalgy is great for quick moving of mails into folders. It is a pity that the author says, it is not likely that it will be updated to Thunderbird 60+.
This review is for a previous version of the add-on (0.2.35).To create your own collections, you must have a Mozilla Add-ons account.