Developer reply by Realraven (Axel Grude)
Rated 5 out of 5 stars
Just updated to QF 5.0pre71 & it appears to be working fine, so far. Felt lost w/o QF when TB updated to 78.x.x. Thanks for your work.
This review is for a previous version of the add-on (4.18.1).Thanks for the 5star review! There is a new version with some fresh bug fixes here:
https://github.com/RealRaven2000/QuickFolders/releases/tag/5.0pre80
To create your own collections, you must have a Mozilla Add-ons account.