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Claude Code Issues / #21017

Claude Chrome extension doesn't connect to Claude Code CLI

Resolved 💬 4 comments Opened Jan 26, 2026 by richardpiao Closed Feb 28, 2026

Environment:

  • macOS Darwin 25.2.0
  • Claude Code: 2.1.19
  • Chrome extension: 1.0.40
  • Extension ID: fcoeoabgfenejglbffodgkkbkcdhcgfn

Issue:
Claude Desktop connects to Chrome extension successfully, but Claude Code CLI cannot connect.

Diagnostics:

  • Native messaging host com.anthropic.claude_code_browser_extension is configured correctly
  • Claude Code's native host receives and forwards requests
  • Chrome extension never responds - it doesn't connect to the Claude Code native host
  • Extension manifest has nativeMessaging permission

Expected: Extension should connect to both Desktop and CLI native hosts

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