TB must have addons

by fisheater

13 Add-ons in this Collection

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.

ImportExportTools by Paolo "Kaosmos"

Download Now

Experimental

Rated 4 out of 5 stars 161 reviews

432,772 users

Adds some tools to import and export folders and messages

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 950 reviews

325,600 users

Allows bidirectional access to Google Calendar

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 197 reviews

138,213 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Add-on Compatibility Reporter by Mozilla

Rated 4 out of 5 stars 193 reviews

65,149 users

Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly (legacy add-ons only).

Remove Duplicate Messages (Alternate) by Eyal Rozenberg

Rated 4 out of 5 stars 160 reviews

65,085 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 163 reviews

33,252 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

11,632 users

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

Color Folders by fisheater

Rated 4 out of 5 stars 123 reviews

29,127 users

Color your Folder Treeview Icons!

Tag Toolbar by H.Ogi

Rated 4 out of 5 stars 54 reviews

14,604 users

Add toolbar for toggling tags.

FiltaQuilla by R Kent James

Rated 4 out of 5 stars 55 reviews

9,975 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 215 reviews

5,718 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

39 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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