How it would work:
A user installs the "Thunderbird AI Suite" add-on from the official repository.
The add-on adds new buttons to the composition toolbar: "AI Assist," "Translate," "Improve Tone," etc.
It also adds options to the right-click context menu in the email list and reading pane.
When you click a function, the add-on sends the selected text (or the entire draft) to an AI API (like OpenAI's GPT, Google's Gemini, or Anthropic's Claude).
The processed result is then r...