Add-ons
Top-Rated Extensions
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SmartQuotes
Applies the correct smart quotes („ ... “ instead of " ... ") used in Lithuanian, German, Czech, and other Central European languages. One click fixes your entire text.
Sortana
Sortana adds AI-powered email filtering to Thunderbird. Configure your own endpoint and tailor prompts to automatically classify messages. Tune generation settings, cache results across restarts, and debug with colorized logs.
ChartPop
Stop opening new tabs! Instantly see stock prices and mini charts by hovering over tickers on any webpage.
Sum it up
The extension adds a button called Sum it up which takes content of a message and asks a locally running large model to summarize it in 50-100 words. It requires API of a llama.cpp or ramalama server running locally. No content leaves the local host.
Retrieve Remote Avatar
This experimental addon for Thunderbird fetches a remote avatar from various sources if one isn't already set.
By default this addon pulls from libravatar. Custom providers can also be set.
Email Assistant
This Extension provides a framework for AI-powered email analysis. It processes incoming emails, sends them to a language model of your choice, and applies tags. This allows for sophisticated email classification and sorting.
Sales force weblink
Better reply
Better reply to emails by extracting email addresses from the content of the message and allowing you to reply to them directly.
Made in collaboration with aski75.
New message folder navigation
A Thunderbird add-on designed to help navigate through folders containing new emails received using keyboard shortcuts and a menu (newly received emails, emails whose subject has not been viewed).
Made in collaboration with Grisous.
Crypto Price Tracker
MROF (Move Rep. Original Folder)
Tired of having to hunt down which folder you filed a thread in after doing it 20 times? MROF does it for you!
Check Links
Bugmail Revived
WebExtension implementation of the original add-on by Fabrice Desré and Colin Guthrie.
This replaces earlier releases by the original authors and a "fixed version" which existed for Thunderbird 68–73.
Show in Mail URL for macOS Calendar
Provides the 'Show in Mail' URL to be added in an iOS/macOS Calendar event referering to the message ID. Can also be customized for gmail URLs using the custom URL format in the extension preferences.
Torcharizer
Thunderbird add-on that generates concise AI summaries of emails using a local Ollama model
DynSign
DynSign is a Thunderbird extension that dynamically inserts a signature into your emails. It allows you to keep your email signature up to date without having to manually edit it in Thunderbird.
https://github.com/Vozodo/DynSign
Paperless-ngx Uploader
A simple plugin that adds a context menu option to upload PDF attachments directly from Thunderbird to your paperless-ngx instance
Thunderbird 誤送信防止アドオン
TO欄・CC欄に複数のメールアドレスがある場合の誤送信を防止します。送信前に自動的にチェックし、複数アドレスが検出された場合は警告を表示して送信を停止します。BCC欄の使用を推奨し、プライバシー保護を支援します。
kurl - YOURLS Shortener
Quickly shorten links with your self-hosted YOURLS instance. Provides a toolbar button, context menu, and keyboard shortcut for a fast workflow.
AI Mate
Provides a compose button in Thunderbird that creates AI-powered email replies with OpenAI. Offers settings for API key, model choice, and customization options.
To create your own collections, you must have a Mozilla Add-ons account.
