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Birdbox

Maintain your favorite websites as spaces within Thunderbird

Rated 5 out of 5 stars (2)
39 users
Updated May 14, 2025

ThunderAI (ChatGPT, Gemini, Ollama in your emails)

ThunderAI uses the capabilities of ChatGPT, Google Gemini or Ollama to enhance email management.
It enables users to analyze, write, correct, assign tags, create calendar events and tasks and optimize their emails.

Rated 5 out of 5 stars (17)
5,247 users
Updated May 13, 2025

Owl for Exchange

Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).

Rated 5 out of 5 stars (214)
48,255 users
Updated May 12, 2025

ThunderAI Sparks

ThunderAI Sparks is an add-on designed to add advanced features to ThunderAI.

Not yet rated
300 users
Updated May 8, 2025

Inbox Actions

Inbox Actions add convenient interactions to messages allowing users to interact with an product or service all without the user even having to open their email.

Not yet rated
2 users
Updated May 8, 2025

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 (79)
3,718 users
Updated May 6, 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 (197)
14,999 users
Updated May 5, 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 (51)
2,637 users
Updated May 5, 2025

XNote++

Persistent sticky notes associated to emails. You can fulltext search with constraints/email them/print/bookmark/copy to clipboard.

If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.

Rated 4 out of 5 stars (135)
17,036 users
Updated May 5, 2025

Thunderbird Conversations Featured

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Rated 4 out of 5 stars (575)
26,106 users
Updated May 5, 2025

Filter on Folder Button

act. version 1.6.2 for Tb >= 128.x

Toolbar menu button with filter functions.
- run filter on folder
- run filter on message
- show filter dlg
- create filter from message

with hotkeys, theme support, languages de, en, fr, es, it

Rated 4 out of 5 stars (27)
1,397 users
Updated May 5, 2025

Quick Folder Move

When filing messages, a search box will show up allowing you to quickly enter the folder name you want to move to.

If no search term is entered, a list of recent folders will show up instead.

Rated 4 out of 5 stars (209)
7,935 users
Updated May 2, 2025

Search Selector

Плагин для выбора поисковой системы при поиске выделенного текста.

Not yet rated
2 users
Updated April 30, 2025

PrintingTools NG

PrintingTools NG enables many layout and formatting options for printing messages with header borders, sorting, attachment lists etc. PDF output can be auto named and Page options can ease printer settings.

It is your printing toolbox.

Rated 4 out of 5 stars (50)
29,769 users
Updated April 27, 2025

Custom Headers View

Display custom email headers in the mail header toolbar. This extension allows you to make visible specific headers in the toolbar, like received, date, DuckDuckGo's duck-original- headers to show the sender's email in the original format, etc.

Not yet rated
41 users
Updated April 24, 2025

Copy Sent to Current

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.

Rated 4 out of 5 stars (106)
1,732 users
Updated April 20, 2025

Header Tools Lite

Allows to modify the header and the source of messages

Rated 4 out of 5 stars (52)
2,668 users
Updated April 17, 2025

ExQuilla for Exchange

Thunderbird email accounts connecting to Microsoft Exchange Web Services.

Rated 4 out of 5 stars (134)
4,396 users
Updated April 17, 2025

Thunderbird Assist

[Closed Alpha Testing] Thunderbird assist provides a summary of new messages in your inbox.

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

Not yet rated
10 users
Updated April 17, 2025

Mail Extractor

Mail Extractor for Thunderbird quickly extracts and copies email addresses from selected messages. It now also downloads attachments as ZIP files.

Rated 4 out of 5 stars (7)
755 users
Updated April 14, 2025