Thunderbird

by PeterPerlich

46 Add-ons in this Collection

Adblock Plus by Eyeo

Rated 5 out of 5 stars 7,507 reviews

11,904,515 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 210 reviews

131,867 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 149 reviews

236,924 users

Spanish/Spain Dictionary

German Dictionary by KaiRo

Rated 4 out of 5 stars 61 reviews

363,481 users

German Dictionary (new Orthography) for spellchecking in Mozilla products

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 207 reviews

324,226 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)".

Dizionario italiano by flod

Rated 4 out of 5 stars 63 reviews

130,660 users

Italian spellchecking dictionary

Quicktext by R Kent James, John Bieling, others

Rated 4 out of 5 stars 310 reviews

86,681 users

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

Mail Redirect by Pawel Krzesniak, Onno Ekker

Rated 4 out of 5 stars 126 reviews

35,619 users

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

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 194 reviews

66,777 users

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

British English Dictionary by Mark Tyndall

Rated 3 out of 5 stars 408 reviews

113,404 users

British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.

To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".

Nightly Tester Tools by Automation Development, Henrik Skupin, others

Nightly Tester Tools (NTT) is an add-on for aiding testers of Nightly builds of Mozilla apps including Firefox.

General Catalan dictionary by Toniher

Rated 4 out of 5 stars 38 reviews

31,150 users

Free Catalan (general version) spelling dictionary.

German Dictionary, extended for Austria by KaiRo

Rated 5 out of 5 stars 20 reviews

24,329 users

German dictionary (new Orthography) for spellchecking in Mozilla products, extended with Austrian words

AttachmentExtractor by Andrew Williamson

Rated 4 out of 5 stars 169 reviews

29,828 users

Extracts all attachments from selected messages and then can delete, detach or mark-read.
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