Overview
The Kimi browser extension is what Moonshot AI renamed Kimi WebBridge into on September 22. WebBridge was originally built for developers, giving coding agents like Claude Code and Cursor a direct line into a logged-in browser; the rename adds an entry point for everyday users, who can chat in a browser sidebar and have Kimi navigate pages, fill forms and complete multi-step tasks, then record repeated flows as replayable skills. The extension drives the browser locally over the Chrome DevTools Protocol, so cookies and login sessions never leave the machine; page text and screenshots are still sent to the selected model provider as needed, so the privacy boundary depends on which agent you connect. It installs free from the Chrome Web Store and Edge Add-ons.
Key Features
- Sidebar chat control: Give Kimi instructions next to the current page to navigate, click, fill forms and complete multi-step tasks without switching tools.
- Recorded skills: Save a completed flow as a skill and replay it with one sentence later, ideal for research collection and recurring forms.
- Local execution: Drives Chrome or Edge over the Chrome DevTools Protocol on your machine, keeping cookies and login sessions in the browser.
- Agent-agnostic: Works with Kimi Code CLI, Claude Code, Cursor, Codex and Hermes; the installer can place skill definitions into supported agent environments.
Use Cases
- Recurring workflows: record weekly information gathering or form filling once, replay with one command
- Shared browser layer: let Claude Code, Cursor and other agents use the same logged-in browser session
- Data gathering: compare product listings or compile job posts, then hand the results to a model to structure
Pros
- The extension itself is free and installs from the Chrome Web Store or Edge Add-ons
- Local CDP execution keeps login sessions in the browser, one less cookie risk than hosted browsers
- Recorded skills spare you from re-describing recurring tasks every time
- Not tied to a single model; connect Claude Code, Cursor and other agents alongside Kimi
Pricing
The extension is free to install from the Chrome Web Store and Edge Add-ons; it pairs with a local bridge service, installed via the Kimi desktop app on macOS or a PowerShell command on Windows. Model usage is billed by whichever agent you connect: Kimi subscription for a Kimi account, or the respective service for Claude Code and others.
Summary
The Kimi browser extension brings WebBridge developer capabilities to everyday users: sidebar chat drives web pages, repeated flows become replayable skills, and local CDP execution keeps login sessions in place. Its bigger value is being agent-agnostic, with one browser layer shared by Kimi, Claude Code and Cursor. Recorded skills are sensitive to page changes, so keep a human confirmation step before actions like purchases or messages.
Version History
- Kimi WebBridge becomes the Kimi browser extension with a sidebar and recorded skills (2026-09-22): Moonshot AI renamed Kimi WebBridge to the Kimi browser extension and added a browser sidebar, so users can navigate, fill forms and complete multi-step tasks through chat, then record repeated actions as reusable skills. The extension drives the browser locally through the Chrome DevTools Protocol, so cookies and sessions stay on the machine, and beyond Kimi Code CLI it works with outside agents including Claude Code, Cursor, Codex and Hermes. It is free from the kimi.com product page and the Chrome Web Store, and pairs with a local daemon.