Folders and Filters


Archive This Requires Restart

Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.

Rated 5 out of 5 stars (25)
1,662 users

Awesome Auto Archive

Automatically do Archive/Copy/Delete/Move actions based on user defined rules

Rated 4 out of 5 stars (21)
7,551 users

CapsKiller Requires Restart

Caps Killer is a protection against newbies using caps in their mails.

Rated 5 out of 5 stars (2)
72 users

Collapsed Unread Requires Restart

Shows unread email count for collapsed folders even if the unread mails are in subfolders.

Rated 3 out of 5 stars (5)
606 users

Color Folders Requires Restart

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (145)
31,372 users

Count Filters Requires Restart

This add-on provides various search filters couting values, such as total number of recipients, or number of lines, words,links in body message.

Not yet rated
32 users

Delete Only Empty Folder Requires Restart

Disallows to delete not-empty mail folders.

Not yet rated
25 users

EmailPicky 4 Requires Restart

Grab email addresses from emails from any selected Email Folder and add them to your contacts. (Email Crawler / Email ID Grabber / Bounced email collector) - Thunderbird Plugin
Note: It doesn't create duplicates, but shows as 'xxx messages added'.

Rated 3 out of 5 stars (12)
4,586 users

Empty 'em Requires Restart

Empty all your Trash and Junk folders in one fell swoop!

Rated 3 out of 5 stars (31)
1,709 users

EuropeanMX Spam Reporter Requires Restart

Train your EuropeanMX filter by reporting unrecognized spam or false-positives back to us.

Not yet rated
28 users

Expression Search / GMailUI Requires Restart

Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.

Rated 4 out of 5 stars (78)
8,763 users


This addon extends filtering to read messages downloaded during an IMAP synchronization (bug 308148)

Not yet rated
127 users

Feedly Synchronizer

Synchronize your favorite RSS sources with Thundebird and Feedly

Rated 3 out of 5 stars (9)
316 users

Folder Levels Requires Restart

Rank your email folders by how much you care about them, and hide the ones you don't need right now.

Rated 4 out of 5 stars (6)
547 users

Folder Pane View Switcher Requires Restart

Add arrow buttons for rotating among folder views, and switch to "All Folders" view when hovering over the folder pane during drag & drop.

Rated 5 out of 5 stars (38)
11,037 users

folderplus Requires Restart

This extension adds some basic missing features about folders.
Move mails to their conversation folder. Navigate to folder with new keyboard shortcuts.

Rated 3 out of 5 stars (5)
691 users

Gravatars Requires Restart

Show a column with the Gravatar-picture and sender-name in email folders.

Not yet rated
64 users

Hide Local Folders Requires Restart

Removes the "Local Folders" entry from the folder pane.

Rated 4 out of 5 stars (19)
9,021 users

IMAP Draft Unread Requires Restart

This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!

Rated 3 out of 5 stars (1)
353 users

IMAP Received Date Requires Restart

Make the “Received” column in IMAP folders show when messages were actually received.

Rated 5 out of 5 stars (6)
1,922 users