Instant AI Answer от Tanjiro

Instant AI Answer brings a fast, unobtrusive AI assistant to every page you browse. Highlight any text — a question, a term, a passage you don't understand — and a small "Ask AI" button appears right where you're reading. One click gets you a clear, concise answer without leaving the page or switching tabs.

Key features:

Select any text on any website to get an instant explanation or answer
Right-click context menu support for quick access
Toolbar popup for typing questions manually
Configurable model, temperature, and system prompt
Clean, non-intrusive UI that stays out of your way until you need it

Requires a free Groq API key, available at console.groq.com. Your key is stored locally in your browser and used only to communicate directly with Groq's API — it is never sent anywhere else.