Rated 5 out of 5 stars

I use my email in a very organize fashion and I also keep current project correspondence in individual (sub)folders. I keep all my folders in the normal Thunderbird column on the left, but this is not enough. Quickfolders lets me get to my most commonly-used folders immediately. Quickfolders also lets me file my correspondence in regularly-used project folders. And in the latest version (1.9.8 which the developer is letting me try) I can now access important Thunderbird commands (like "create subfolder" "delete folder" "rename folder", etc.) from the Quickfolders row. Basically, Quickfolders is an essential time and labor saver that multiplies Thunderbird's power by an order of magnitude. A must-have and fun to use, too!

This review is for a previous version of the add-on (1.9.7.3).