Stephen Judge's Thunderbird Add-ons

by Stephen Judge

38 Add-ons in this Collection

Provider for Google Calendar by Philipp Kewisch

Rated 3 out of 5 stars 1,658 reviews

197,225 users

Allows bidirectional access to Google Calendar

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 260 reviews

4,426 users

Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.

British English Dictionary (Marco Pinto) by Marco A.G.Pinto

Rated 5 out of 5 stars 83 reviews

176,225 users

A fork of Mark Tyndall's add-on, based on David Bartlett's
British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey.

V3.3.6 has 140 000+ new words and also fixes.

CardBook by Philippe V.

Rated 4 out of 5 stars 471 reviews

71,261 users

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Manually sort folders by Jonathan Protzenko, Itagaki Fumihiko

Rated 4 out of 5 stars 626 reviews

12,366 users

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

gContactSync by Josh Geenen

Rated 4 out of 5 stars 416 reviews

14,915 users

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 230 reviews

73,510 users

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

DKIM Verifier by Philippe Lieser

Rated 4 out of 5 stars 49 reviews

21,758 users

Verifies the DKIM-Signature of an e-mail.

Send Later by Jonathan Kamens, Jonathan Perry-Houts

Rated 5 out of 5 stars 264 reviews

111,201 users

True "Send Later" functionality to schedule the time for sending an email.

Remove Duplicate Messages by Eyal Rozenberg

Rated 4 out of 5 stars 300 reviews

100,710 users

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

TbSync by John Bieling

Rated 5 out of 5 stars 262 reviews

68,919 users

TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Thunderbird Conversations by Jonathan Protzenko, Standard8

Rated 4 out of 5 stars 568 reviews

26,608 users

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

MEGAbird by MEGA

Rated 4 out of 5 stars 42 reviews

38 users

Add MEGA support to Thunderbird's Filelink feature.

QuickFolders (Tabbed Folders) by Realraven (Axel Grude), Alexander Malfait

Rated 5 out of 5 stars 190 reviews

15,505 users

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!

StartupMaster by htamas

Rated 4 out of 5 stars 309 reviews

211 users

Asks for the master password at startup (fixes multiple password prompt)
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