Language Support

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Web Translate

The best Translator for Thunderbird!

Supported translators:
Google Translate
Microsoft Translator
DeepL
Yandex
Яндекс Переводчик
Google 翻译
百度翻译

Rated 4 out of 5 stars (18)
21,121 users

Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (18)
19,916 users

Grammalecte [fr] (for Thunderbird)

French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.

Rated 5 out of 5 stars (14)
5,972 users

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Rated 5 out of 5 stars (2)
5,655 users

Automatic Dictionary

Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.

Rated 5 out of 5 stars (47)
4,995 users

Charset Menu

Restores the charset menu removed in Thunderbird 91 and fixes an issue in Thunderbird 78.

Rated 5 out of 5 stars (6)
3,318 users

TexTra

Thunderbirdのメールのテキストを翻訳、辞書引きを行います。

Rated 3 out of 5 stars (1)
931 users

✨ Awesome Emoji Picker ✨

Modern, nice emoji picker that you can use to find and select emojis. It will be copied to your clipboard or even directly inserted into the e-mail, when you click on it.

You will certainly like it.

Not yet rated
858 users

Read Aloud: A Text to Speech Voice Reader

Read aloud the selected email messages using text to speech (TTS). Read Aloud is intended for users who prefer to listen to content instead of reading, and those with dyslexia or other learning disabilities.

Rated 5 out of 5 stars (1)
358 users

Text Insert/Text Blocks

Insert styled text blocks/templates (text, images, tables etc.) in an easy way in email composer.

E.g.: type br<ctrl-d>, it converts to best regards.

Make a list of shortcut-replacements in the addon settings. Style the text, add images etc.

Rated 4 out of 5 stars (5)
252 users

Simple Locale Switcher Requires Restart

An easier management of the user interface language

Rated 5 out of 5 stars (14)
172 users

Grammar, Proofreading & Spell Checker

Check the grammar and spelling directly inside Thunderbird using Wordeep technology

Rated 5 out of 5 stars (1)
163 users

Quick Locale Switcher Requires Restart

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Rated 3 out of 5 stars (88)
150 users

Unicodify – Text transformer

Easily and quickly autocorrect common symbols as ¼, transform text to “Unicode fonts” and change the casing.

Rated 5 out of 5 stars (1)
142 users

ThunderbirdCR (Dictionary) Requires Restart

Context Reverso for Thunderbird.
A translator/dictionary available to English, Spanish, French, German, Italian, Portuguese Dutch, Polish, Romanian, Arabic, Chinese, Japanese, Hebrew, Russian, Turkish.

Hotkey: Search selected texts (Shift+F1)

Not yet rated
122 users

Ungender

Eine Thunderbird-Erweiterung, welches Binnen-Is und Ähnliches von Webseiten entfernt. Es basiert auf der bekannten Firefox Erweiterung Binnen-I be gone.

Not yet rated
72 users

AutoUp Requires Restart

Transform the first letter of a sentence in uppercase

Rated 3 out of 5 stars (10)
71 users

Dictionary Switcher Requires Restart

Toggles dictionaries automatically or manually and displays the currently selected one

Rated 4 out of 5 stars (180)
64 users

Zombie Keys (Multilanguage Keyboard) Requires Restart

Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).

Rated 5 out of 5 stars (25)
57 users

Dictionary Switcher for Thunderbird Requires Restart

Toggles spelling dictionaries automatically or manually and displays the currently selected one in the status bar.
Now merged with Dictionary Switcher v1.3 for Firefox/SeaMonkey

Rated 4 out of 5 stars (26)
56 users