Mozilla Ships Tabstack, a Browser-Execution API Built for AI Agents

Product Hunt·high signal

Mozilla's developer arm (Mozilla-Ocho) launched Tabstack this week as 'the web execution layer for AI agents' — three endpoints (/extract to Markdown or schema'd JSON, /generate to transform content, /automate to click/scroll/fill). Both browser and model run on Tabstack, and it reads the accessibility tree instead of screenshots for a claimed 60–80% cost cut vs vision agents. Pricing starts at $1 per 1,000 Markdown extractions with a 50,000-credit free tier, and a tabstack-cli repo shipped alongside.