Tabstack gives AI agents and apps finished output from the live web in a single API call. Extract structured data to a schema you define, convert pages to Markdown, run cited multi-source research, and automate browser tasks. Every call returns exactly what you asked for. Built for developers shipping autonomous agents and those adding web interaction to an existing app or stack. Built by Mozilla, with ephemeral processing, no model training on your data, and robots.txt compliance by default.
This is the 6th launch from Tabstack by Mozilla. View more
Tabstack Browser Automation
Launched this week
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.
Launch Team / Built With
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
Not sure that my feedback can be useful, because I`m not too deep in the topic. But I love homepade of your website - it is clear and has all information needed. Keeping instruction near the start button was a very smart decision.
Tabstack by Mozilla
@julia_shtogren you just made my heart so happy! That website is a labor of love. I've been building each stack page as we've launched on Product Hunt. I strategized the approach, wrote the messaging, designed it (from where it was), and built it. I'm so proud of the work and I'm really really thankful for your kind words. Let me know if you try Tabstack or if you need anything. Always here to help. 🫶
@tessak22 Tessa, it's so great that you put so much love into your product and made it so thoughtful! I always admire people who fearlessly bring new ideas into the world.
Wishing you all the best with it! And I'm curious - what happens after the Product Hunt launch? Are you taking a break to collect feedback first, and then jump straight into improvements?
Tabstack by Mozilla
We start planning the next launch 🔥
Tabstack by Mozilla
@julia_shtogren we are continually taking in feedback. Its a focus for our GTM efforts to truly understand the market and give people what they actually need and want. Like @fmerian said, though, plan the next launch!
Tabstack by Mozilla
S/O to @tessak22 for the awesome work crafting tabstack.ai!
Tabstack by Mozilla
@fmerian 😍
Congrats on #3! What’s been the hardest part of building reliable browser automation for AI agents?
Wow, another great innovation. I hope this works both ways and makes it more standard to implement accessibility trees. A11y continues to be important in the agentic web!
Tabstack by Mozilla
@mark_toubman2 🙌
Documenso
Congrats on the launch and good luck!
Tabstack by Mozilla
@catalinmpit thank you, friend! Appreciate your support!
Tabstack by Mozilla
@catalinmpit thanks for your continuous support! it means the world
Mozilla shipping something this developer-focused and privacy-conscious feels like a nice return to form. Loving that robots.txt compliance and ephemeral processing are defaults, not afterthoughts.
Tabstack by Mozilla
@savadgcs thank you. and yes, @Mozilla does care about developers and humans. ❤️
Tabstack by Mozilla
@savadgcs Thank you, this one means a lot. Defaults are everything, values you have to opt into aren't really values. Tabstack is privacy-first. Really glad that comes through.
Humans in the Loop
Great product!
Tabstack by Mozilla
@dax1 thanks for your support, Darko! you rock
Tabstack by Mozilla
@dax1 much appreciation!