mcp-zen

Lets MCP clients control a live Zen/Firefox browser to navigate, click, fill forms, screenshot, and execute JavaScript through a persistent server and browser extension.

→ mikesmullin/mcp-zen · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: EXTENSION_SECRET

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCONTAINERIZED

configEXTENSION_PORT— sets MCP_HTTP_PORT (default 8791) alongside (default

🔐 secretEXTENSION_SECRET— edit .env, paste the secret from the options page as

configMCP_HTTP_PORT— sets (default 8791) alongside EXTENSION_PORT (default

configMCP_ZEN_LOCK

configMCP_ZEN_URL

configXDG_RUNTIME_DIR

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/mikesmullin-mcp-zen-1lmzfo)](https://m8ven.ai/mcp/mikesmullin-mcp-zen-1lmzfo)

commit: e6c969787522c89ec160a55e08e5702162ea3f47

code hash: 04238be7adb7969c76bad699b9858d137ec46be694812821e8903a21866da683

verified: 7/6/2026, 10:31:33 AM

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