Enables multiple MCP clients to share a single Chrome instance while maintaining isolated tab sessions for each client. It acts as a multiplexer between clients and the chrome-devtools-mcp server, preventing tab conflicts across different sessions like Claude Code windows.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
process.env. You'll be asked to provide them before it can run.CDMCP_MUX_CHROMIUM— Chromium binary (defaults to bundled Puppeteer)CDMCP_MUX_HEADLESS— Headless vs. headful by default headful headful (matches vanilla; force headless with =true)CDMCP_MUX_SOCKET— Override unix socket path for the daemonCDMCP_MUX_USER_DATA_DIR— Override Chrome profile directoryDEMO_WORKDUMP_BIN_STDERRMCP_MUX_DEBUG— 1 logs every rewrite diffMCP_MUX_LOG_STDERRMCP_MUX_UPSTREAM_STDERRMUX_BINXDG_RUNTIME_DIRXDG_STATE_HOME[](https://m8ven.ai/mcp/ochen1-chrome-devtools-mcp-mux-39zvx5)