Folders and Filters
ImportExportTools NG Requires Restart Featured
Adds tools to import/export messages and folders (NextGen)
Flat Folder Tree (updated) Requires Restart
Flat Folder Tree enables you to selectively breakout sub-folders under intermediate folders in the folder pane view. This is an updated version of the existing addon, now compatible with Thunderbird 60.
Colored Folders Requires Restart
Add colors to your folders in Thunderbird!
Must-have for better organisation + intuitive and speedy workfow...
This is project "Color Folders" (originally by Fisheater), corrected, resurrected, restaurated, extended and republished.
This is an initial attempt to revive part of "Mark All Read Button" by Mark S Baines.
This Add-on uses the Thunderbird WebExtension APIs. It adds a button on the Mail Toolbar that marks unread messages on the current displayed folder as read.
ShowFolderSize-T Requires Restart
Shows folders size on disk.
This add-on is a fork of ShowFolderSIze.
DetachAttachment - Attachment clipper, Extractor Requires Restart
This addon provides functionality of bulk delete attachments of selected messages.
Delete-command is added to the messages' context menu.
Copy Folder mod Requires Restart
I corresponded to thunderbird 60 or later