Codex Chrome plugin reinstall does not create Chrome NativeMessagingHosts registry key on Windows

On Windows, the Codex Chrome plugin reinstall appears to create the native messaging manifest file and the extension host executable, but it does not create the required Chrome Native Messaging Host registry entry.

Observed

• Codex Chrome Extension is installed and enabled in Chrome.
• Manifest exists:

%LOCALAPPDATA%\OpenAI\extension\com.openai.codexextension.json

• Extension host executable exists under:

%USERPROFILE%\.codex\plugins\cache\openai-bundled\chrome\latest\extension-host\windows\x64\extension-host.exe

• Missing registry key:

HKCU\Software\Google\Chrome\NativeMessagingHosts\com.openai.codexextension

• Also not present under HKLM or Wow6432Node NativeMessagingHosts paths.

Result

The Chrome extension cannot communicate with the native host, and Codex Chrome connection fails during initialization.

Expected

Reinstalling the Codex Chrome plugin should register:

HKCU\Software\Google\Chrome\NativeMessagingHosts\com.openai.codexextension

with the default value pointing to:

%LOCALAPPDATA%\OpenAI\extension\com.openai.codexextension.json

Environment

• Windows
• Google Chrome installed
• Codex Chrome Extension version: 1.1.5_0