Add-ons
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Check your emails for spelling and grammar issues76,953 users -
The best Translator for Thunderbird!
Supported translators:
Google Translate
Microsoft Translator
DeepL
Yandex
Яндекс Переводчик
Google 翻译
百度翻译58,663 users -
This extension is based on László Németh's Hungarian Dictionary8,870 users -
Australian English Dictionary for Mozilla applications.8,095 users -
![Icon for Grammalecte [fr] (for Thunderbird)](https://addons.thunderbird.net/user-media/addon_icons/809/809689-32.png?modified=1602750472)
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.7,292 users
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Word translation in tooltip with English⟷Croatian dictionary already incorporated.0 users -
Look up Japanese words with the hover of a mouse.
After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.240 users -
As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.11 users -
CantoFish is a popup Cantonese-English dictionary for Firefox. It contains over 200,000 entries and works with both traditional and simplified Chinese characters. The Yale and Jyutping romanization systems are supported, as well as Mandarin pinyin.0 users -
Ћирилично/латинично пресловљавање, виртуална ћирилична тастатура - Serbian Cyrillic/Latin transliteration and Virtual Cyrillic keyboard0 users -
An easier management of the user interface language33 users
Recently Added See all »
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Fixes Greek HTML messages that incorrectly declare charset=MSWIN1253 by decoding those MIME parts as windows-1253 for display only. Special fix for emails from EKDDA0 users -
Translate the message you are reading or your own reply into your language using Google, Microsoft, DeepL, or Yandex. Bring your own API key.55 users -
Easily write emails mixing Right-to-Left languages (like Arabic, Persian, Hebrew) with Left-to-Right languages (like English). Automatically formats your text as you type.15 users -
Translate the open email into 20+ languages with one click, powered by Google Translate — then switch back to the original with the same click. No setup, no account. Interface in 9 languages.129 users -
Translates the open email to the selected language — shows translation in a split view inside Thunderbird.435 users -
Translate emails in reading and compose windows directly inside Thunderbird, reversibly, using Google, DeepL, or LLMs (Gemini, Mistral, OpenAI, Ollama, LM Studio).371 users
See all 120 extensions in Language Support »
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