ShowFolderSize-T 0.2.9.2 Requires Restart
by Toshi
Shows folders size on disk.
This add-on is a fork of ShowFolderSIze.
https://freeshell.de//~kaosmos/index-en.html#foldersize
About this Add-on
There are no plans to support Thunderbird WebExtension (Thunderbird 78 or later).