Add-ons
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Check your emails for spelling and grammar issues72,617 users -
Web Translate તમારા વેબ બ્રાઉઝર / થન્ડરબર્ડ માટે અનુવાદકનો ઉપયોગ કરવો સરળ છે!55,043 users -
Australian English Dictionary for Mozilla applications.8,080 users -
A Magyar Ispell helyesírási szótár a Hunspell helyesírás-ellenőrző programhoz készített nyílt forráskódú magyar szótár.7,487 users -
Diccionario corrector ortográfico de Español/México6,733 users -
![Icon for Grammalecte [fr] (for Thunderbird)](https://addons.thunderbird.net/user-media/addon_icons/809/809689-32.png?modified=1602750472)
Correcteur grammatical dédié à la langue française. Inclus : conjugueur, formateur de texte et dictionnaires orthographiques.6,079 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.12 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 language28 users
Recently Added See all »
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Translate the message you are reading into your language using Google, Microsoft, DeepL, or Yandex. A simple "Translate" button is added to the message top bar.5 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.5 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.74 users -
Translates the open email to the selected language — shows translation in a split view inside Thunderbird.342 users -
Translate emails in reading and compose windows directly inside Thunderbird, reversibly, using Google, DeepL, or LLMs (Gemini, Mistral, OpenAI, Ollama, LM Studio).262 users -
Traduisez n'importe quel texte de vos emails d'un clic droit : choisissez la langue, l'IA détecte la source et traduit. Fonctionne avec Google Gemini, ChatGPT ou Claude. Clé API requise.35 users
See all 118 extensions in Language Support »
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