Add-ons
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Check your emails for spelling and grammar issues73,144 users -
The best Translator for Thunderbird!
Supported translators:
Google Translate
Microsoft Translator
DeepL
Yandex
Яндекс Переводчик
Google 翻译
百度翻译57,540 users -
This extension is based on László Németh's Hungarian Dictionary8,329 users -
Australian English Dictionary for Mozilla applications.7,887 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.6,870 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.234 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 language31 users
Recently Added See all »
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Translate compose messages with an OpenAI-compatible LLM before sending. Supports OPENAI protocol.0 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.44 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.14 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.117 users -
Translates the open email to the selected language — shows translation in a split view inside Thunderbird.405 users -
Translate emails in reading and compose windows directly inside Thunderbird, reversibly, using Google, DeepL, or LLMs (Gemini, Mistral, OpenAI, Ollama, LM Studio).345 users
See all 119 extensions in Language Support »
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