Thunderbird

by sean

8 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.

TT DeepDark by steva

Rated 5 out of 5 stars 176 reviews

26,719 users

Simple and smooth dark complete theme for Thunderbird
> latest development version available on the "version history" page <

CompactHeader by jmozmoz

Rated 5 out of 5 stars 162 reviews

101,894 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)

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 190 reviews

69,823 users

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

Image Zoom by Jason Adams

Rated 4 out of 5 stars 353 reviews

82,704 users

Adds zoom and rotation functionality for images...

Copy Plain Text 2 by Leszek Życzkowski

Rated 5 out of 5 stars 92 reviews

25,954 users

Copies text without formatting

Bamboo Feed Reader by Julien Fray

Rated 4 out of 5 stars 252 reviews

10,268 users

Feed reader | RSS - ATOM - OPML

This extension has NOT been rewritten with the new WebExtensions API (Firefox Quantum).
No future version is planned by the original developer.

Bamboo is still running with Firefox ESR and Thunderbird.

Zindus by Leni Mayo

Rated 4 out of 5 stars 199 reviews

14,268 users

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

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