Thunderbird

by Mac4Lin

23 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 1,053 reviews

303,361 users

Allows bidirectional access to Google Calendar

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 159 reviews

422,608 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 192 reviews

147,163 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Toolbar Buttons by Michael B.

Rated 4 out of 5 stars 324 reviews

106,922 users

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Zindus by Leni Mayo

Rated 4 out of 5 stars 207 reviews

23,268 users

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Silvermel by ShareBird

Rated 5 out of 5 stars 586 reviews

42,675 users

A Creamy Silvery Experience

Stationery by Arivald

Rated 4 out of 5 stars 109 reviews

34,121 users

Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!

Check and Send by H.Ogi

Rated 4 out of 5 stars 31 reviews

22,590 users

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

Display Mail User Agent by Jürgen Ernst

Displays icon for user agent of received mails.

Walnut for Thunderbird by alfredkayser

Rated 5 out of 5 stars 29 reviews

11,123 users

Walnut for Thunderbird, based on icons from art.gnome.org, and sporting a wooden look. Fully compatible with from 5.0 upto latest nightly build (currently 27.0a1). Full support for Lightning/calendar.

EMail Address Crawler by CySlider

Rated 4 out of 5 stars 92 reviews

2,695 users

Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.

Allow HTML Temp by Alexander Ihrig

Rated 4 out of 5 stars 59 reviews

10,723 users

This Add-on allows to have HTML temporarily allowed in the currently displayed message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (if this is your default mode).

Correct Identity by Dennis Verspuij

Rated 4 out of 5 stars 95 reviews

6,330 users

Ever sent mail from the wrong email address because you forgot to select the correct identity in the compose window?

iLeopard Mail by REO-2007

Rated 4 out of 5 stars 118 reviews

3,592 users

It is a Theme of the Mac Leopard-style which did iLeopard in a model.
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