TB must have addons

by fisheater

13 Add-ons in this Collection

ImportExportTools by Paolo "Kaosmos"

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Experimental

Rated 4 out of 5 stars 167 reviews

447,204 users

Adds some tools to import and export folders and messages

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 956 reviews

332,969 users

Allows bidirectional access to Google Calendar

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 197 reviews

143,565 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Remove Duplicate Messages (Alternate) by Eyal Rozenberg

Rated 4 out of 5 stars 162 reviews

67,241 users

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

AttachmentExtractor by Andrew Williamson

Rated 4 out of 5 stars 165 reviews

33,116 users

Extracts all attachments from selected messages and then can delete, detach or mark-read.

Check and Send by H.Ogi

Rated 4 out of 5 stars 30 reviews

12,819 users

Check the message contents and addresses before you send the message...

Add-on Compatibility Reporter by Mozilla

Rated 4 out of 5 stars 200 reviews

53,251 users

Reports compatibility issues for legacy extensions. This extension has been discontinued, since the new WebExtensions API is designed for stronger forward compatibility.

Color Folders by fisheater

Rated 4 out of 5 stars 124 reviews

28,377 users

Color your Folder Treeview Icons!

Tag Toolbar by H.Ogi

Rated 4 out of 5 stars 55 reviews

14,763 users

Add toolbar for toggling tags.

FiltaQuilla by R Kent James

Rated 4 out of 5 stars 56 reviews

10,141 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

Rated 4 out of 5 stars 214 reviews

5,198 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

Rated 5 out of 5 stars 1 review

40 users

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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