Add-ons
TB must have addons
by fisheater
About this Collection
10 Add-ons in this Collection
ImportExportTools
by Paolo "Kaosmos"
7,556 users
Adds some tools to import and export folders and messages
Provider for Google Calendar
by Philipp Kewisch
197,865 users
Allows bidirectional access to Google Calendar
Enigmail
by Patrick Brunschwig
4,481 users
Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.
Remove Duplicate Messages
by Eyal Rozenberg
103,509 users
Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).
Check and Send
by H.Ogi
22,197 users
Check the message contents and addresses before you send the message...
Color Folders
Tag Toolbar / Tag Popup
FiltaQuilla
by R Kent James, Realraven (Axel Grude)
16,667 users
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.
Extra Folder Columns
by Joey Minta, Thunderbird Development Team
129 users
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
Limit_Offline_Message_Size Button
by fisheater
1 user
Limit the size of a message to download with a single click of the button for slow (and/or expensive) network connection.
Quick access to Tools->Account Settings->Disc Space->"To save disk space, do not download: Messages larger than XXkB"
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