Add-ons
Jonathan's Phoenix
by sonorous
About this Collection
Awesome Addons
104 Add-ons in this Collection
Enigmail
by Patrick Brunschwig
4,213 users
Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.
gContactSync
by Josh Geenen
14,137 users
Synchronizes contacts & groups between Thunderbird and Google Contacts.
Mail Merge
by Alexander Bergmann
73,124 users
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
Quicktext
by John Bieling
131,112 users
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
LookOut
by Aron Rubin
1,001 users
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Remove Duplicate Messages
by Eyal Rozenberg
98,771 users
Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).
Mail Redirect
by Onno Ekker, Pawel Krzesniak
2,551 users
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
Thunderbird Conversations
by Jonathan Protzenko, Standard8
25,954 users
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.
Signature Switch
by Achim Seufert
56,271 users
Switch the signature on/off or choose a new one from your predefined set.
CompactHeader
by jmozmoz
15,121 users
Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.
QuickFolders (Tabbed Folders)
by Realraven (Axel Grude), Alexander Malfait
15,214 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!
Stationery
by Arivald
997 users
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!
Addressbooks Synchronizer
by Günter Gersdorf
26,180 users
Synchronizes selected addressbooks with other instances of thunderbird
using local files, webdav servers or imap servers
Check and Send
by H.Ogi
20,744 users
Check the message contents and addresses before you send the message...
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