2026-02-03T00:13:13.093Z puppeteer:error [
ProtocolError: Runtime.runIfWaitingForDebugger timed out. Increase the 'protocolTimeout' setting in launch/connect calls for a higher timeout if needed.
...
]
2026-02-03T00:13:13.095Z mcp:log list_pages error: ProtocolError: Network.enable timed out. Increase the 'protocolTimeout' setting in launch/connect calls for a higher timeout if needed.
at NetworkManager.addClient (.../chrome-devtools-mcp/.../index.js:49803:24)
at FrameManager.initialize (.../chrome-devtools-mcp/.../index.js:50406:38)
at #initialize (.../chrome-devtools-mcp/.../index.js:51924:36)
at CdpPage._create (.../chrome-devtools-mcp/.../index.js:51738:31)
2026-02-03T00:13:13.097Z mcp:log new_page request: { "url": "https://example.com", "background": true, "timeout": 30000 }
2026-02-03T00:13:13.097Z mcp:log new_page error: ProtocolError: Network.enable timed out. Increase the 'protocolTimeout' setting in launch/connect calls for a higher timeout if needed.
at NetworkManager.addClient (.../chrome-devtools-mcp/.../index.js:49803:24)
at FrameManager.initialize (.../chrome-devtools-mcp/.../index.js:50406:38)
at #initialize (.../chrome-devtools-mcp/.../index.js:51924:36)
at CdpPage._create (.../chrome-devtools-mcp/.../index.js:51738:31)
What I'm doing
npx -y chrome-devtools-mcp@latest --autoConnect --channel=stable --logFile <path>chrome://inspect/#remote-debugging(checkbox "Allow remote debugging for this browser instance")Expected
list_pagesreturns open tabs/pages.new_pagecan open a URL.Actual
list_pages.list_pagesandnew_pagefailing with CDP/Puppeteer protocol timeouts, especiallyNetwork.enable timed out.Evidence from server log
(edited to remove URLs and local username)
Versions
Notes
--autoConnectas documented (Chrome 144+).