Cole Action

by Nick Liebmann

51 Add-ons in this Collection

CardBook by Philippe V.

Rated 4 out of 5 stars 482 reviews

70,677 users

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 229 reviews

73,603 users

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Send Later by Jonathan Kamens, Jonathan Perry-Houts

Rated 5 out of 5 stars 264 reviews

113,092 users

True "Send Later" functionality to schedule the time for sending an email.

TbSync by John Bieling

Rated 5 out of 5 stars 264 reviews

65,878 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

Rated 4 out of 5 stars 570 reviews

26,511 users

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Emoji by Michael Ganss

Rated 4 out of 5 stars 64 reviews

25,867 users

Add emojis to your e-mails.

Addressbooks Synchronizer by Günter Gersdorf

Rated 4 out of 5 stars 82 reviews

27,015 users

Synchronizes selected addressbooks with other instances of thunderbird
using local files, webdav servers or imap servers

Bluhell Firewall by Diego Casorran

Rated 4 out of 5 stars 498 reviews

86 users

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Automatic Dictionary by beltrachi

Rated 5 out of 5 stars 49 reviews

3,681 users

Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.

Shrunked Image Resizer by Geoff Lankow

Rated 4 out of 5 stars 89 reviews

14,394 users

Make your photos smaller, so they don't take forever to email.

*Shrunked Image Resizer is no longer maintained.*

Add-ons Manager Context Menu by Zulkarnain K.

Rated 5 out of 5 stars 49 reviews

24 users

Add more items to Add-ons Manager context menu.

Attach from Clipboard by Michael Ganss

Rated 4 out of 5 stars 28 reviews

6,420 users

Create file attachments directly from the system clipboard.

Windows Taskbar Unread Badge by Brandon Streiff

Rated 4 out of 5 stars 43 reviews

438 users

Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.

eCleaner by flasresizerdeveloper

Rated 4 out of 5 stars 69 reviews

18 users

Clears preferences left by extensions after uninstallation

Compact Menu 2 by Milly

Add a compact menu button to the navigation toolbar, and hide the menu bar.
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