Chrome extension not connecting on Windows 11 (Build 26200)

Resolved 💬 5 comments Opened Jan 27, 2026 by MateriaIistGuy Closed Feb 28, 2026

Title: Chrome extension not connecting on Windows 11 (Build 26200)

Environment:

  • Claude Code: 2.1.20 (native installer)
  • Chrome: 144.0.7559.97
  • Extension: 1.0.40
  • Windows 11 Build 26200.7623
  • Chrome Profile: Profile 132

Setup verified:

  • Registry key: HKCU\Software\Google\Chrome\NativeMessagingHosts\com.anthropic.claude_code_browser_extension ✓
  • JSON config exists and correct ✓
  • chrome-native-host.bat exists ✓
  • No Claude Desktop installed ✓

Steps tried:

  • Reinstalled extension
  • Reinstalled Claude Code (npm → native)
  • Restarted Chrome multiple times
  • Toggled extension off/on
  • Deleted and recreated registry key

Result:
Always "Browser extension is not connected"

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