Featured Add-ons for Thunderbird

by Mozilla

15 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,839 reviews

21,903,066 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.

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 180 reviews

163,684 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

LookOut by Aron Rubin

Rated 4 out of 5 stars 144 reviews

216,009 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).

Image Zoom by Jason Adams

Rated 4 out of 5 stars 327 reviews

190,390 users

Adds zoom and rotation functionality for images...

TT DeepDark by steva

Smooth dark theme for Thunderbird
• Beta version available here

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 156 reviews

98,382 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

50,976 users

Mass Mail and Personal Mail

Extra Folder Columns by Joey Minta, Standard8

Rated 4 out of 5 stars 208 reviews

206,679 users

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

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 271 reviews

40,267 users

Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.

Visit my Contacts Sidebar site for recent versions and news.

ThunderBrowse by GS! Networks

Rated 3 out of 5 stars 148 reviews

31,768 users

Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!

Mail Redirect by Pawel Krzesniak, Onno Ekker

Rated 4 out of 5 stars 122 reviews

34,655 users

Allow to redirect (a.k.a. "bounce") mail messages to other recipients.

CompactHeader by jmozmoz

Rated 5 out of 5 stars 166 reviews

166,410 users

Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. For Thunderbird 36 and older use version 2.0.9 (see version history)

Noia 2.0 eXtreme (v3.x) by Gerard D.

Rated 4 out of 5 stars 97 reviews

19,249 users

This Noia 2 eXtreme theme v3.x version has been fully rewritten / v2.x (still available but no more compatible with recent TB).
Options are available with an associated extension.
See also my Web site for new versions.
Icons by Carlitus.

Silvermel by ShareBird

Rated 5 out of 5 stars 570 reviews

66,016 users

A Creamy Silvery Experience

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