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GTrash

Provides a button and keyboard shortcut (Shift + Alt + Delete by default) to move mail to its account's Trash folder, regardless of normal delete setting. It was developed to improve the experience of using GMail via IMAP.

Not yet rated
154 users

Move messages or yourself

Move messages or jump to folder with a keystroke.

Rated 4 out of 5 stars (19)
264 users

Message Filters Button U

Toolbar button to execute Run Filters on Message from Tools menu.

Rated 1 out of 5 stars (1)
4 users

Real sender of italian PEC

Shows real sender of italian certified emails (PEC) into the table that lists emails.

Not yet rated
3 users

ImportExportTools NG

Adds tools to import/export messages and folders

EML, MBOX, HTML PDF , Plaintext Support and CSV support with indexes and file naming.

Rated 4 out of 5 stars (216)
221,407 users

Disable DragAndDrop (New)

Disable drag and drop on the folder tree in order to prevent unintended folder movement.

Rated 5 out of 5 stars (19)
3,182 users

Copy Folder mod Requires Restart

I corresponded to thunderbird 60 or later
Copy Folder

original:
https://addons.thunderbird.net/ja/thunderbird/addon/copy-folder/

Rated 4 out of 5 stars (10)
469 users

Group Favorite Folders

An extension for Thunderbird 115+ that groups and sorts favorites folders in the compact view.

Not yet rated
220 users

MyTickets

Extension to mails that have TicketID: XXXX in Subject
It will Check to see if you have a "MyFolders" folder under your INBOX.
If yes it will create two child folders:
- Open
- Closed
IT will sync All Open Folder every 5 minutes

Not yet rated
7 users

Thread in same folder

Runs after junk classification and filtering to make sure a newly-received message lands in the same folder as its parent in a thread.

Not yet rated
45 users

archive-by-time

With the filter function comes with thunderbird, all emails met rules will be moved to a specific folder. As time passed the folder would grew bigger and I wanted to put all emails into sub folders classified by year.

Not yet rated
175 users

If This, Then! - IFTTT connector

*Trigger 'If This Then That' by message filters.
E.g.: On email with the file attachment xyz.log, send from sampledomain.com,
email body with text 'error 365', trigger action "error365" on IFTTT
IFTTT can push to web services, do home automation

Not yet rated
70 users

Custom Subject Column

Add a column to the message list that replaces the subject with a regular expression

Rated 5 out of 5 stars (1)
15 users

quicker quicksearch

make searching for emails faster:

Automatically insert into the quickfilter box: the author, subject or the email domain of the selected email.


No need to retype the address, if you want to search for all emails of this author.

Rated 5 out of 5 stars (7)
1,055 users

thundersort

Sort incoming mails into account folders based on the local part

Not yet rated
199 users

Quick Filter By

A simple extension that sets the Quick Filter based on the selected message fields. You can filter by either selecting "Quick Filter By" in the message list context menu or simply by alt-clicking on the message's sender, recipient or subject text.

Rated 5 out of 5 stars (6)
295 users

Nostalgy++/ Manage, search and archive emails

Shortcuts to move/copy/archive messages, with folder name completion.
Rules for moving messages to folders.
Automatic rules by statistical observation/ by folder of conversation/thread.
Search dialog in a tab, with message display /folder tree.

Rated 5 out of 5 stars (73)
2,715 users

CatchAll Bird

This extension improves the use of CatchAll-Addresses with Thunderbird.
It handles incoming messages addressed to all prefix@domain.tld for a fixed domain.
For each prefix the AddOn can create a new identity and folder.

Rated 5 out of 5 stars (4)
87 users

ShowFolderSize-T Requires Restart

Shows folders size on disk.

This add-on is a fork of ShowFolderSIze.
https://freeshell.de//~kaosmos/index-en.html#foldersize

Rated 5 out of 5 stars (1)
112 users

Archive 3 Month

Archive messages that are older than 3 months in inbox and sent folder

Not yet rated
34 users