Search :: Add-ons for Thunderbird

General Catalan dictionary

Free Catalan (general version) spelling dictionary.

Rated 4 out of 5 stars (40)

11,120 users

Canadian English Dictionary

For some reason, Mozilla doesn't have a Canadian localization team, but I know that even the British dictionary doesn't quite cut it for the truly patriotic.

Rated 4 out of 5 stars (82)

9,199 users

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Addressbooks Synchronizer

Synchronizes selected addressbooks with other instances of thunderbird
using local files, webdav servers or imap servers

Rated 4 out of 5 stars (81)

23,066 users

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German Dictionary, classical spelling standards

German Dictionary according to the classical spelling standards for spell-checking in Firefox and Thunderbird

Rated 5 out of 5 stars (20)

9,079 users

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Check and Send

Check the message contents and addresses before you send the message...

Rated 4 out of 5 stars (49)

18,519 users

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Signal Spam

Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).

Rated 3 out of 5 stars (171)

15,595 users

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Russian Hunspell dictionary

Создан на основе словаря Лебедева. Файл аффиксов постепенно переписывается, словарь ежедневно пополняется. Релиз выкладывается один раз в месяц первого числа.

Rated 3 out of 5 stars (65)

9,344 users

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Confirm-Address

Confirm E-mail address before sending mail

Rated 4 out of 5 stars (75)

17,478 users

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Hungarian Dictionary

This extension is based on László Németh's Hungarian Dictionary

Rated 4 out of 5 stars (56)

8,212 users

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Český slovník pro kontrolu pravopisu

Slovník pro kontrolu pravopisu pro aplikace Mozilla

Rated 4 out of 5 stars (36)

13,907 users

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German Dictionary, extended for Austria

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

Rated 5 out of 5 stars (22)

4,987 users

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German Dictionary (Switzerland)

Dictionary with Swiss variants of German words for spellchecking in Mozilla products

Rated 5 out of 5 stars (3)

14,146 users

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Swedish Dictionary

Swedish spell-check dictionary.

Rated 5 out of 5 stars (22)

6,383 users

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Danish Dictionary for the Spell Checker

Danish dictionary for Firefox, Thunderbird and other Mozilla products.

Rated 3 out of 5 stars (25)

4,007 users

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Diccionario de Español/Chile

Diccionario corrector ortográfico de Español/Chile

Rated 5 out of 5 stars (4)

2,470 users

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English - Greek Spelling dictionary

English-Greek spell-checking dictionary for Firefox, Mozilla thunderbird and Seamonkey mail for easier spell checking in bilingual text.If you need better spelling results try the respective stand-alone...

Rated 4 out of 5 stars (74)

3,261 users

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