Review for Copy Folder by Firefox user 865de9
Rated 5 out of 5 stars
It does a very good job for imap sync folders, all account or specify folder, is like the imap sync script of lamira.info but lot simplier and easy to do (the lamira script has huge options but is for advance users), this add on works perfect, as if you are using thunderbird below v59 us this or if you are over v60 use the link that other user has commented.
as I still use v59 because most of my paid addons only works on v59 I still use it.
To create your own collections, you must have a Mozilla Add-ons account.