Tabstack Browser Automation - Automate the web in your app or agent, no browser to host
by•
Give /automate a task in plain English and it drives a real browser to do it: navigate a site, click through a multi-step flow, fill a form, reach a page that only renders after interaction. The result streams back in one API call.
It's an API you call, not a framework you install. Browser and LLM included, nothing to host, no concurrency ceiling. Accessibility-tree automation spends 60 to 80% fewer tokens than screenshot-based agents.
Built by Mozilla. Ephemeral, no training on your data.


Replies
Congrats on #3! What’s been the hardest part of building reliable browser automation for AI agents?
running a bunch of playwright/CDP driven agent sessions myself and hosting the browsers is genuinely the annoying part, not the automation logic itself. how does this handle sites that fingerprint headless/remote browsers - does it look like a normal residential session or is that still on me to solve
Browser automation opens up a lot of powerful use cases for AI agents. I’m curious how you validate that agent behaviour stays reliable across website updates and unexpected UI changes.
Foyer
no browser to host is the line that matters. hosting headless chrome yourself is the tax nobody warns you about when you start automating the web. Mozilla putting this out gives it real weight