Provides tools for controlling the Brave browser via an extension and local native bridge, enabling tab organization, window movement, bookmark saving, page reading, and browser interaction.
Provides tools for controlling the Firefox browser via an extension and local native bridge, enabling tab organization, window movement, bookmark saving, page reading, and browser interaction.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Tabherd organize my tabs into groups by domain"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Your browser, connected to your agent. A thin extension and local native bridge expose browser APIs through six MCP tools and a JSON CLI. Organize tabs, move windows, save bookmarks, read pages, and interact with the browser you already use.
Requires Node.js 22.18 or newer.
npm install -g tabherdDownload tabherd-VERSION-chrome.zip from the latest release and unzip it. Load the folder as an unpacked extension in Chrome, Chromium, Edge, or Brave (Developer mode → Load unpacked).
Register the host for every installed browser: tabherd setup.
Reload the extension and check its popup connection.
Run tabherd doctor, then tabherd call tabs.query '[{}]'.
For Firefox, download tabherd-VERSION-firefox.zip and temporarily load its manifest.json from about:debugging.
On Nix, nix run github:lmdevv/tabherd -- --help runs the CLI. The NixOS and Home Manager modules (programs.tabherd.enable = true) register the browsers declaratively, so you skip tabherd setup. See Nix and NixOS.
Add the bridge to your agent’s stdio MCP configuration:
{
"mcpServers": {
"tabherd": {
"command": "tabherd",
"args": ["mcp"]
}
}
}The browser starts the native host automatically. No account or separate server. Tabherd grants local control of your real browser profile; use it with agents you trust, and pick Full access, Standard (no cookies, page JavaScript, or data deletion) or Read only in the extension popup. API availability varies by browser.
Quick start · Nix and NixOS · Tools and CLI · Agent skill
Related MCP server: browserpilot-mcp
Requires pnpm.
pnpm install
pnpm buildLoad apps/extension/dist/chrome-mv3 as an unpacked extension, then use node packages/bridge/dist/index.js in place of tabherd. Firefox: pnpm build:firefox, then load apps/extension/dist/firefox-mv2/manifest.json.
Docs: pnpm --filter docs dev. Checks: pnpm test and pnpm check-types. Optional real browser test on Linux with Chromium: pnpm test:browser.
This server cannot be deployed
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