Folders and Filters

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Disable DragAndDrop (New)

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

Rated 5 out of 5 stars (23)
3,669 users
Updated Nov. 14, 2025

Tbpro Addon [STAGE]

[THIS ADD-ON IS NOT AVAILABLE FOR PUBLIC USE]
This add-on is meant for internal testing of your Thunderbird Pro Add-on

Not yet rated
696 users
Updated Nov. 13, 2025

Thunderbird Pro

Thunderbird Pro gives you an email address, appointment scheduling, and the ability to send large files with end-to-end encryption. It’s part of our effort to build services offering privacy-respecting alternatives to the platforms widely used today.

Not yet rated
9 users
Updated Nov. 13, 2025

selectAll Button

This Add-on installs a button on the mail toolbar that will when clicked select all messages within the folder.

Rated 5 out of 5 stars (1)
142 users
Updated Nov. 13, 2025

Tidybird

Organize email into folders quickly and easily.

Rated 4 out of 5 stars (20)
242 users
Updated Nov. 12, 2025

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 (244)
250,674 users
Updated Nov. 11, 2025

Folder Pane Toggler

Adds a toggle button to the unified toolbar to show and hide the folder pane. This is very useful when using different tabs with different folders open, and on smaller screens, or where as much space is needed as possible. This should be part of TB

Rated 5 out of 5 stars (5)
160 users
Updated Nov. 10, 2025

quickFilters

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Rated 5 out of 5 stars (76)
13,526 users
Updated Nov. 3, 2025

LocalFolders

Add as many local folders as you want to.
New folders can reside on mapped or network locations.

Rated 4 out of 5 stars (49)
11,724 users
Updated Nov. 3, 2025

Copy Email Folder

This extension allows you to automatically copy email messages from one folder to another with all subfolders and perform a merge of the contents. It is a helpful tool for users who want to back up or sync folders but avoid duplicating emails.

Rated 4 out of 5 stars (7)
627 users
Updated Oct. 30, 2025

Thunderbird Send [stage]

[Alpha Testing] Thunderbird send allows sending and receiving end to end encrypted files.

This add-on is undergoing testing and not yet available to the general public.

Rated 1 out of 5 stars (1)
26 users
Updated Oct. 29, 2025

快速筛选

Search For 是一个Thunderbird邮件客户端的扩展插件,允许用户在邮件列表中快速搜索和筛选邮件。插件提供了右键菜单选项,在邮件列表中,快速筛选基于联系人、姓名、域名和主题相关的所有往来邮件。此插件是基于Search for 1.0.1作者: Richard LAUTH的修改版,实现144版本的兼容和汉化

Not yet rated
1 user
Updated Oct. 28, 2025

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (200)
13,295 users
Updated Oct. 19, 2025

Thunderbird Send

[IMPORTANT] This is a pre-release version Thunderbird Send. We will gradually open it for beta testing.
This add-on is built and maintained by your friends at Thunderbird.
Stay tuned to updates on thunderbird.net

Not yet rated
65 users
Updated Oct. 14, 2025

Email Expiration Manager

Automatically manage emails with expiration dates. Delete or move expired emails to reduce storage and environmental impact. Part of the Zero Carbon Email initiative.

Rated 5 out of 5 stars (1)
13 users
Updated Oct. 14, 2025

ThunderFeed - Read Email Like RSS

Transform email folders into Hey.com-like RSS-style reading experience. Read your emails like a news feed - scroll through messages in a continuous stream, and they're automatically marked as read as you scroll past them

Not yet rated
18 users
Updated Oct. 10, 2025

Filter by sender

Clean up your inbox fast (keyboard only)
> Select a mail e.g a newsletter
> Ctrl+Shift+Q = you see all Mails from the same sender
> read or delete all
> Esc = clean the filter & pick next

Or right-click on the selected E-Mail for context menu

Not yet rated
16 users
Updated Oct. 8, 2025

Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

Rated 5 out of 5 stars (5)
293 users
Updated Oct. 7, 2025

Expression (Power) Message/Calendar Search - NG

* Mail / calendar search
* Fuzzy search: Bucher also finds Bücher
* Visual search query builder
* Search window as a tab
* New search and filter criteria: reply-to, bcc, to-only, filename, xnote, date range, time, etc
* to A but not to B + more

Rated 4 out of 5 stars (52)
2,580 users
Updated Oct. 6, 2025

New Folder Filters Button

Toolbar button to execute Run Filters on Folders from Tools menu
(based on Folder Filters Button Add-on for Thunderbird 68 by Chris Malek)

Rated 5 out of 5 stars (10)
764 users
Updated Sept. 23, 2025