Tom's 1337 Thunderbird Add-ons

by Tom Clift

11 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.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 1,005 reviews

336,560 users

Allows bidirectional access to Google Calendar

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 160 reviews

460,154 users

United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.

To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 194 reviews

159,078 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

gContactSync by Josh Geenen

Rated 4 out of 5 stars 224 reviews

85,099 users

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Add-on Compatibility Reporter by Mozilla

Rated 4 out of 5 stars 192 reviews

63,615 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.

LookOut by Aron Rubin

Rated 4 out of 5 stars 150 reviews

207,894 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).

Quicktext by WizKid, R Kent James

Rated 4 out of 5 stars 332 reviews

89,590 users

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

English (Australian) Dictionary by Cameron

Rated 4 out of 5 stars 108 reviews

46,297 users

Australian English Dictionary for Mozilla applications.

Extra Folder Columns by Joey Minta, Thunderbird Development Team

Rated 4 out of 5 stars 248 reviews

126,657 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.

ViewAbout by Gary Kwong

Rated 4 out of 5 stars 17 reviews

3,359 users

Enables access to various about: dialogs from the View menu.

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