Folders and Filters

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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 (44)
1,065 users

attachment column in search result list Requires Restart

Show the column for attachments in search results list. General search (edit-> search -> search emails) does not show by default if a message has attachments.
This addon adds this column, just as in a normal folder view.

Rated 5 out of 5 stars (2)
679 users

Auto Filter Timer Requires Restart

Run existing message filters on any folder at a specified interval. Simply right-click the desired folder then choose from the [AUTOFILT] menu items. This is a hack/clean-up of another coder's work, but works perfectly. Use at your own risk

Rated 3 out of 5 stars (1)
32 users

Awesome Auto Archive

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

Rated 4 out of 5 stars (44)
2,411 users

CapsKiller Requires Restart

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

Rated 5 out of 5 stars (2)
2 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 (6)
47 users

Color Folders Requires Restart

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (162)
2,793 users

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.

Rated 5 out of 5 stars (88)
13,773 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 (6)
142 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.

Rated 3 out of 5 stars (1)
6 users

Delete Only Empty Folder Requires Restart

Disallows to delete not-empty mail folders.

Rated 5 out of 5 stars (1)
14 users

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.

Not yet rated
32 users

Disable DragAndDrop (Thunderbird) Requires Restart

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

Rated 5 out of 5 stars (19)
646 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 (15)
366 users

Empty 'em Requires Restart

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

Rated 3 out of 5 stars (32)
90 users

EuropeanMX Spam Reporter Requires Restart

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

Rated 4 out of 5 stars (2)
51 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 (114)
2,399 users

ExtendIMAPFilters

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

Rated 5 out of 5 stars (3)
99 users

Feedly Synchronizer

Synchronize your favorite RSS sources with Thundebird and Feedly

Rated 4 out of 5 stars (16)
63 users

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.

Rated 5 out of 5 stars (1)
13 users