AutomaApp/automa ? reverse-engineered prompt

Build me a browser extension called Automa that lets people automate repetitive browser tasks by connecting simple blocks into workflows.

I want a clean interface where users can create, save, and run flows that do things like fill out forms, click through pages, take screenshots, and scrape data from websites. It should work in Chrome and Firefox, and there should be a way to run automations manually or on a schedule.

Also include a place to browse shared workflows from a marketplace style view, and make the extension feel polished and easy to use for someone who is not a developer. If anything about the browser extension setup or current docs needs checking, look it up online first.