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Provider for Google Calendar

Provider for Google Calendar connects Thunderbird with Google Calendar for full task sync, conference details, and scheduling support. It offers deeper integration than Thunderbird’s native support using Google’s official API.

Rated 3 out of 5 stars (1,748)
170,183 users

Deutsch (de) Language Pack

Deutsch (de) Language Pack

Rated 3 out of 5 stars (129)
232,260 users

British English Dictionary (Marco Pinto)

A fork of Mark Tyndall's add-on, based on David Bartlett's
British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey.

Rated 5 out of 5 stars (83)
161,182 users

English United States Dictionary

English United States (en-US) Dictionary as shipped with Thunderbird 115 ESR and Firefox 115 ESR.

Rated 4 out of 5 stars (39)
59,526 users

French spelling dictionary

Spelling dictionary for the French language.

Rated 4 out of 5 stars (54)
117,706 users

Deutsches Wörterbuch

Deutsches Wörterbuch (neue Rechtschreibung) für die Rechtschreibprüfung in Mozilla-Produkten

Rated 4 out of 5 stars (83)
262,418 users

Diccionario de Español/España

Diccionario de Español/España

Rated 4 out of 5 stars (167)
61,025 users

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (498)
66,673 users

ExQuilla for Exchange

Thunderbird email accounts connecting to Microsoft Exchange Web Services.

Rated 4 out of 5 stars (134)
3,558 users

Brazilian Portuguese Dictionary (New Spelling)

The same spellchecker shipped with the Brazilian version of Firefox.

Rated 4 out of 5 stars (46)
8,003 users

Mail Merge

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (237)
75,264 users

DKIM Verifier Featured

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (55)
26,950 users

Wörterbuch Deutsch (de_DE)

Deutsches Wörterbuch igerman98 (de_DE, Deutschland, "neue" Rechtschreibung), für Firefox, Thunderbird und Seamonkey.

Rated 4 out of 5 stars (24)
40,779 users

Dizionario italiano

Add support for Italian to spellchecking

Rated 4 out of 5 stars (72)
88,739 users

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (268)
116,117 users

English (en-GB) Language Pack

English (en-GB) Language Pack

Rated 2 out of 5 stars (34)
188,298 users

Polski slownik poprawnej pisowni

Polski słownik poprawnej pisowni dla Firefoksa, Thunderbirda i SeaMonkey.

Rated 5 out of 5 stars (50)
43,235 users

Woordenboek Nederlands

Woordenboek Nederlands met de woordenlijst van OpenTaal.

Rated 3 out of 5 stars (70)
23,735 users

Русский словарь проверки орфографии

Русский словарь проверки орфографии

Rated 4 out of 5 stars (136)
15,201 users

Verificador Ortográfico para Português do Brasil

Possui a maioria das palavras existentes em português do Brasil, de acordo com o novo acordo ortográfico que entrou em vigor janeiro de 2009. É Atualizado constantemente.

Precisa de ajuda?
facebook.com/RescueLanguage
rescuelanguage.sf.net

Rated 5 out of 5 stars (76)
6,135 users