Message and News Reading
This add-on is a (work in progress) fixed version of the original Add-on "AttachmentExtractor" which is no longer supported and fixed by the original author.
It Extracts all attachments from selected messages and then can delete, detach...
Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.
Folder view arrows; switch to "All Folders" view when hovering during drag & drop; allow user to select which views are enabled or tied to the view arrows.
Displays a small graphic visualising the context (thread) of the currently selected email.
FireTray Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
Adds some toolbar buttons using phoenity icons.
Shortcuts to move/copy/archive messages, with folder name completion.
Set rules for moving messages to associated folders.
Automatic rules by statistical observation.
View images inside TB without external viewer.
For v2.3/TB 78.11 see below
Configure text and background colors of quotes in mail and news messages. From up addon version 3 (Thunderbird 91) you can collapse quotes.
Lets you associate user accounts and identities with specific folders. Great for multiple users who share TB, or for managing mailing lists.
No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.
It is still possible to sort messages by ctrl-clicking the header.
Direction control and BiDi-related charset misdetection correction
Allows users to edit the flags Thunderbird sets on folders.
Add notes to your e-mails. Drop-in replacement for XNote++ with more features.
Account Colors Requires Restart
Associates user-defined colors with POP3/IMAP accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.
Copy Folder Requires Restart
The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.
MailHops maps the route an email took to get to you. Displaying the senders location, weather, user-agent and authentication used.
Remove the ">" prefix from quote when you make a reply.
[Source code] https://github.com/isshiki/ReFwdFormatter
Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.
Automatically do Archive/Copy/Delete/Move actions based on user defined rules