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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.
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.
English United States Dictionary
English United States (en-US) Dictionary as shipped with Thunderbird 115 ESR and Firefox 115 ESR.
French spelling dictionary
Deutsches Wörterbuch
Deutsches Wörterbuch (neue Rechtschreibung) für die Rechtschreibprüfung in Mozilla-Produkten
Diccionario de Español/España
CardBook
Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon
ExQuilla for Exchange
Thunderbird email accounts connecting to Microsoft Exchange Web Services.
Brazilian Portuguese Dictionary (New Spelling)
The same spellchecker shipped with the Brazilian version of Firefox.
Mail Merge
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
DKIM Verifier
Wörterbuch Deutsch (de_DE)
Deutsches Wörterbuch igerman98 (de_DE, Deutschland, "neue" Rechtschreibung), für Firefox, Thunderbird und Seamonkey.
Send Later
Polski slownik poprawnej pisowni
Polski słownik poprawnej pisowni dla Firefoksa, Thunderbirda i SeaMonkey.
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
English (Australian) DictionaryTo create your own collections, you must have a Mozilla Add-ons account.
