Gemini browser | Browser Harness
Let Geminiuse your browser.
Gemini CLI clicks, types and reads pages in your own Chrome, logged in as you.
When a tool is missing,
the agent writes it.
- agent: wants to pick a date
- agent_helpers.py → helper missing
- agent writes itagent_helpers.py + pick_date()
- date picked
Questions
Is this Gemini in Chrome?
No. Gemini in Chrome is Google's assistant panel. This lets Gemini CLI do the work in your tabs. It is Browser Harness, open source from Browser Use.
How do I set it up?
Copy the setup prompt and paste it into Gemini CLI. It installs itself. Chrome asks once for permission.
What does it cost?
Nothing. Browser Harness is open source under MIT, and using your own Chrome is free. Cloud browsers are $0.02 per browser-hour if you want them.
You will never use
the browser again.