Introducing the Weavetab Extension: local browser control for any model — Weavetab Research

The Weavetab Extension is a Chromium-based surface that lets any local or remote model drive your real browser — bookmarks, sessions, cookies and all — at roughly 10× the throughput of a remote MCP round-trip.

Introducing the Weavetab Extension: local browser control for any model

Published: 2026-05-02

The Weavetab Extension is a Chromium-based surface that lets any local or remote model drive your real browser — bookmarks, sessions, cookies and all — at roughly 10× the throughput of a remote MCP round-trip.

## What it is

A browser extension that speaks the Weavetab tool protocol natively. It runs in the same process as your tabs, so there is no external browser to launch, no remote CDP endpoint, and no fresh profile on every session.

## Why it's fast

The extension bypasses the WebSocket hop that a remote MCP server requires. Tool calls resolve inside the extension worker in **~300 µs**, and the bottleneck is once again Chromium itself.

## Availability

Private beta this quarter. Join the waitlist on the homepage.