Tabstack

Tabstack is browsing infrastructure for AI systems, built and backed by Mozilla. It exposes a single API that turns a goal into a coordinated workflow of discovery, extraction, and verification across the open web, returning structured data or a fully cited research report. Fast Mode answers in 10–30 seconds with lightweight fetches; Balanced Mode runs the full agentic loop with multi-pass evaluation in 1–2 minutes. Mozilla does not train models on customer data, treats inputs as ephemeral, and practices strict data minimization.