Add-ons
Stephen Judge's Thunderbird Add-ons
by Stephen Judge
About this Collection
A few useful Add-ons I use with Thunderbird.
38 Add-ons in this Collection
Provider for Google Calendar
by Philipp Kewisch
204,405 users
Allows bidirectional access to Google Calendar
Enigmail
by Patrick Brunschwig
4,603 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
182,367 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
Manually sort folders
by Jonathan Protzenko, Itagaki Fumihiko
12,832 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
15,434 users
Synchronizes contacts & groups between Thunderbird and Google Contacts.
Mail Merge
by Alexander Bergmann
77,141 users
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
DKIM Verifier
Send Later
by Jonathan Kamens, Jonathan Perry-Houts
115,933 users
True "Send Later" functionality to schedule the time for sending an email.
Remove Duplicate Messages
by Eyal Rozenberg
104,806 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
72,115 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
27,783 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
QuickFolders (Tabbed Folders)
by Realraven (Axel Grude), Alexander Malfait
16,048 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
220 users
Asks for the master password at startup (fixes multiple password prompt)
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