This is a fork of the original ThunderAI repository. It includes changes based on personal preferences. ThunderAI is a Thunderbird Addon that uses the capabilities of ChatGPT, Gemini, Claude or Ollama to enhance email management.
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.github issue template version examples updated. see #616 2026-01-30 22:25:34 +01:00
_locales Removed the spamfilter_context_menu and add_tags_context_menu options and always show the context menu when the corresponding feature is active. See #609 2026-01-29 23:45:00 +01:00
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ThunderAI icon ThunderAI

ThunderAI is a Thunderbird Addon that uses the capabilities of ChatGPT, Google Gemini, Claude or Ollama to enhance email management.

It enables users to analyse, write, correct, assign tags, create calendar events or tasks and optimize their emails, facilitating more effective and professional communication.

ThunderAI is a tool for anyone looking to improve their email quality, both in content and grammar, making the writing process quicker and more intuitive.

You can also define, export and import your own custom prompts!

In any custom prompt you can use additional data placeholders!

Using an API integration, you can activate some automatic features:

  • Tagging incoming emails
  • Moving spam emails to the junk folder

Note

Available Integrations

  • ChatGPT Web
    • There is no need for an API key!
    • You can use a free account!

  • OpenAI API
    • Connect directly to ChatGPT using your API key.

  • Google Gemini
    • You can use also the System Instructions and thinkingBudget options if needed.

  • Claude API
    • You need to grant the permission "Access your data for sites in the https://anthropic.com domain" to use the Claude API.

  • Using Ollama
    • Just remember to add OLLAMA_ORIGINS = moz-extension://* to the Ollama server environment variables.
    • More info about CORS

  • OpenAI Compatible API
    • You can also use a local OpenAI Compatible API server, like LM Studio or Mistral AI!
    • There is also an option to remove the "v1" segment from the API url, if needed, and to manually set the model name if the server doesn't have a models list endpoint.

Translations

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Changelog

ThunderAI's changes are logged here.


Privacy and Permissions

You can find all the information on this page.


Support this addon!

Are you using this addon in your Thunderbird?
Consider to support the development making a small donation. Click here!


Attributions

Translations

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The language status represents the percentage of translated strings in the latest stable release.


Graphics

  • ChatGPT-4 for the help with the addon icon ;-)
  • loading.io for the loading SVGs
  • Fluent Design System for the Custom Prompts table sorting icons
  • JessiGue for the show/hide icon for api key fields
  • Iconka.com for the autotag context menu icon
  • Icojam for the spam filter context menu icon
  • Roundicons for the summarize context menu icon

Miscellaneous