AI Email Assistant for Thunderbird
API—OSS—FREEyesDOCS4/5
AE5.8#10 of 28
—Web—Windows—Mac—Linux—Android—iOS
Ranked in AI Email Writing Tools ·Free plan
About
AI Email Assistant for Thunderbird is ranked #10 of 28 in AI email writing tools on Inferse. It runs on Browser extension. There is a free plan.
Compared on AI email writing tools
- Free plan
- Yesgithub.com
- Browser extension
- Nogithub.com
Facts
- Purpose
- A free, open-source Thunderbird extension that adds AI to the email compose window.github.com · 5 Oct 2026
- Writing tools
- It can rewrite selected text, draft a complete email from a description, and suggest three subject lines.github.com · 5 Oct 2026
- Translation
- It translates emails into Polish, English, German, French, Spanish, Ukrainian, and Russian.github.com · 5 Oct 2026
- AI integrations
- Supported providers are Google Gemini, Groq, OpenAI, Anthropic Claude, xAI Grok, OpenRouter, and Ollama.github.com · 5 Oct 2026
- Local option
- Ollama runs locally and is described as 100% free, for complete privacy.github.com · 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 · 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 · 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 · 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 · 5 Oct 2026
- License
- The project uses the MIT License and is free for personal and commercial use.github.com · 5 Oct 2026
- Installation
- The maker provides a downloadable .xpi file and installation instructions for Thunderbird's Add-ons and Themes menu.github.com · 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 · 5 Oct 2026
Best AI Email Assistant for Thunderbird alternatives
See all 20Where it ranks on Inferse
- Best AI Email Writing Tools in 2026#10 of 28
Sources
- github.com/vbamarcin/thunderbird-ai-assistant· checked 5 Oct 2026




