Thunderbird 3 at work

by klint

89 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,856 reviews

21,093,873 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

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.

Download Status Bar by Szalgiris

Rated 5 out of 5 stars 315 reviews

260,200 users

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

United States English Spellchecker by jooliaan

Rated 3 out of 5 stars 162 reviews

508,948 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)".

ImportExportTools by Paolo "Kaosmos"

Download Now

Experimental

Rated 4 out of 5 stars 118 reviews

312,525 users

Adds some tools to import and export folders and messages

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 976 reviews

282,187 users

Allows bidirectional access to Google Calendar

LookOut by Aron Rubin

Rated 4 out of 5 stars 145 reviews

188,433 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).

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 193 reviews

92,739 users

Adds the ability to create and edit entries in the password manager.

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 158 reviews

88,513 users

Switch the signature on/off or choose a new one from your predefined set...

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 133 reviews

46,282 users

Mass Mail and Personal Mail

Extra Folder Columns by Joey Minta, Standard8

Rated 4 out of 5 stars 208 reviews

187,232 users

This extension is for those TB3 users who want the multiple-columns view that TB2 allowed

Thunderbird Conversations by Jonathan Protzenko

Rated 4 out of 5 stars 382 reviews

74,089 users

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

The latest version is compatible with Thunderbird 38+ only (see below for details).

FoxClocks by Andy McDonald

Rated 4 out of 5 stars 302 reviews

76,526 users

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

URL Link by Neil Bird

Rated 4 out of 5 stars 47 reviews

15,908 users

URL Link is a small Firefox and Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
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