Add-ons
Language Support
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Correctify (FR)
Extension Thunderbird simple et rapide : sélectionnez du texte, faites un clic droit et corrigez-le instantanément. Idéal pour améliorer vos emails en un geste, sans ouvrir d’outil externe. Léger, pratique et ultra efficace.
Correctify (EN)
Simple and fast Thunderbird extension: select any text, right-click, and correct it instantly. Perfect for improving your emails in one step, without opening any external tool. Lightweight, convenient, and highly effective.
AutoReplace
This AddOn offers a function of autocorrection / auto text replacement. You can save a shortcut and a replacement and it will replaced automaticly if you type your new eMail text.
BuxarTranslate
Translate text directly into Thunderbird.
Supports translation of selected text using Google Translate
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.
✨ 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.
Web Translate
The best Translator for Thunderbird!
Supported translators:
Google Translate
Microsoft Translator
DeepL
Yandex
Яндекс Переводчик
Google 翻译
百度翻译
AI Anywhere for ChatGPT
Press "Alt + i" or use context menu to quickly access:
- ChatGPT (OpenAI)
- GitHub Copilot (Microsoft)
- Claude (Anthropic)
- Lumo (Proton)
- Gemini (Google)
- Grok (X)
- Mistral
- Perplexity
- DeepSeek (深度求索)
Antidote connector for Thunderbird
Integrate Antidote with Thunderbird to proofread your emails, check your spelling and grammar, and consult the dictionaries and language guides. Get alerted to abrasive tone and missing attachments before sending a message.
Nexus
AI-powered assistant for Thunderbird – summarize, reply, compose and translate emails with OpenAI. Requires your own OpenAI API key.
Text Insert: Templates/Instant Spell Check
Email composer:
*Upper case the first letter of names or words at sentence start
*Insert styled text, images, tables with shortcuts
*Android(TM) like spellcheck/suggest alternatives (DE, EN, ES, FR,NL)
*Templates for XNote++, Nostalgy++, ES
Dictionary for recipient
Sets the spell check dictionary based on the first recipient
Unicodify – Text transformer
Easily and quickly transform text to “Unicode fonts” and change the casing.
10ten Japanese Reader (Rikaichamp)
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.
SmartQuotes
Applies the correct smart quotes („ ... “ instead of " ... ") used in Lithuanian, German, Czech, and other Central European languages. One click fixes your entire text.
Grammar, Proofreading & Spell Checker
Check the grammar and spelling directly inside Thunderbird using Wordeep technology
AddAccents
This extension allows you to easily insert accented characters as you type in firefox or thunderbird. It is similar to abctajpu (no longer supported). With the default settings, simply press "e" followed by "\" to insert "é" "a\" to insert "à" etc...
New UNEC
New UNEC is a browser extension that transforms the UNEC student panel into a modern and user-friendly interface. It dynamically replaces the existing webpage’s HTML, CSS, and JS with an improved design, featuring automatic dark mode, language.
Hawk (Like ChatGPT in your emails)
Hawk for Thunderbird is an AI-powered plugin designed to generate clear and personalized emails, translate content, fix grammar errors, and streamline your email communication workflow.
To create your own collections, you must have a Mozilla Add-ons account.
