[macOS] ChatGPT Chrome extension unavailable in Chrome Web Store while Codex Chrome plugin and native host are healthy

Summary

The ChatGPT Chrome extension cannot be installed from the Chrome Web Store. The official listing redirects to an error page displaying:

此商品无法购买或下载 This item cannot be purchased or downloaded.

Extension ID: hehggadaopoacecdllhhajmbjkdcmajg

This has persisted across multiple installation attempts. The extension is also not installed or registered in the active Chrome profile.

Environment

• macOS: 26.5.2 (Build 25F84)
• Google Chrome: 150.0.7871.187
• Codex CLI bundled with ChatGPT desktop: 0.146.0-alpha.3.1
• Codex Chrome plugin: chrome@openai-bundled version 26.721.81911, installed and enabled
• Codex Browser plugin: browser@openai-bundled version 26.721.81911, installed and enabled

Diagnostics already completed

The local Codex-side installation appears healthy:

1. The Chrome plugin is installed and enabled.
2. The native messaging host manifest exists at:

~/Library/Application Support/Google/Chrome/NativeMessagingHosts/com.openai.codexextension.json

1. The manifest has the expected allowed origin:

chrome-extension://hehggadaopoacecdllhhajmbjkdcmajg/

1. The native host binary path exists.
2. The extension itself is not installed in Chrome.
3. Reinstalling/re-enabling the Codex plugin does not change the Chrome Web Store availability.

Relevant manifest fields:

{
  "name": "com.openai.codexextension",
  "description": "ChatGPT Chrome native messaging host",
  "type": "stdio",
  "allowed_origins": [
    "chrome-extension://hehggadaopoacecdllhhajmbjkdcmajg/"
  ]
}

Steps to reproduce

1. Open the ChatGPT desktop app / Codex plugin directory.
2. Select the ChatGPT Chrome plugin and attempt installation.
3. Chrome opens the official Web Store listing for extension ID hehggadaopoacecdllhhajmbjkdcmajg.
4. The store redirects to an /error URL and displays that the item cannot be purchased or downloaded.
5. Searching the Chrome Web Store does not surface an installable listing.

Expected behavior

The official extension listing should be installable for an eligible ChatGPT/Codex user, or the app should show an explicit eligibility/region/workspace restriction and provide a supported installation path.

Actual behavior

The browser-side extension is unavailable even though the Codex plugin and native messaging host are correctly installed.

Additional context

A support email was sent to openai-chrome-devs@openai.com on 2026-07-26 with screenshots and diagnostics. It was delivered without a bounce, but no reply has been received.

This may be related to distribution entitlement, region/account eligibility, or staged rollout rather than a local native-host failure. Related reports include #21862 and #21936, but this case differs because the local plugin and native host are present and valid; only the Chrome Web Store distribution layer is unavailable.

Could the team please confirm:

1. Whether this extension is currently restricted by account, workspace, region, or rollout cohort;
2. Whether extension ID hehggadaopoacecdllhhajmbjkdcmajg is still the supported production listing;
3. The official supported installation or enablement path for affected users?