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AI Email Assistant for Thunderbird

Plans and prices

AI Email Assistant for Thunderbird

Free

Bring your own API key; AI provider usage may cost extra

Every plan, in full

On the record

AI integrations
Supported providers are Google Gemini, Groq, OpenAI, Anthropic Claude, xAI Grok, OpenRouter, and Ollama.github.com · read 5 Oct 2026
History and styles
The extension stores the last 50 operations locally and allows users to add unlimited custom writing styles.github.com · read 5 Oct 2026
Installation
The maker provides a downloadable .xpi file and installation instructions for Thunderbird's Add-ons and Themes menu.github.com · read 5 Oct 2026
Key storage
API keys are stored locally and can optionally be encrypted with AES-256-GCM; history is stored locally and never synced to external servers.github.com · read 5 Oct 2026
License
The project uses the MIT License and is free for personal and commercial use.github.com · read 5 Oct 2026
Local option
Ollama runs locally and is described as 100% free, for complete privacy.github.com · read 5 Oct 2026
Privacy
The maker says there is no telemetry, analytics, or tracking, and emails are sent only to the AI provider the user chooses.github.com · read 5 Oct 2026
Purpose
A free, open-source Thunderbird extension that adds AI to the email compose window.github.com · read 5 Oct 2026
Refinement and access
Users can refine generated text with a comment and access AI actions through the right-click menu or Ctrl+Shift+Space.github.com · read 5 Oct 2026
Support and contributions
The maker invites bug reports through GitHub Issues and feature ideas through Discussions, and welcomes pull requests.github.com · read 5 Oct 2026
Translation
It translates emails into Polish, English, German, French, Spanish, Ukrainian, and Russian.github.com · read 5 Oct 2026
Writing tools
It can rewrite selected text, draft a complete email from a description, and suggest three subject lines.github.com · read 5 Oct 2026

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