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Codex Issues / #30535

Browswer/Chrome Plugin is not working with VSCode Ext

Open 💬 3 comments Opened Jun 29, 2026 by 016
💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

What version of the IDE extension are you using?

26.623.61825

What subscription do you have?

Pro

Which IDE are you using?

VS Code

What platform is your computer?

Macos M4

What issue are you seeing?

  • test with browser like : 1) open http:localhost:5173, 2) cnt how much topic on first page
  • it's working with codex app
  • it's not working with vs code, follow are codex error msg, I hope it will help, thx all

What steps can reproduce the bug?

Bug Report: Chrome plugin cannot discover Chrome target in VS Code Codex

I tested the Chrome plugin from VS Code Codex, but it could not open or control Chrome.

Environment:

  • Host: macOS
  • Codex environment: VS Code Codex plugin
  • Chrome plugin path: /Users/xxx/.codex/plugins/cache/openai-bundled/chrome/26.623.61825
  • Chrome plugin skill: chrome:control-chrome
  • Target URL attempted: http:localhost:5173/
  • Chrome version detected: 145.0.7632.76
  • Chrome app path detected: /Applications/Google Chrome.app
  • Codex Chrome Extension ID: hehggadaopoacecdllhhajmbjkdcmajg
  • Codex Chrome Extension version detected: 1.1.5_0
  • Selected Chrome profile: Default

What happened:

  1. Initialized the Chrome plugin browser runtime using:

/Users/xxx/.codex/plugins/cache/openai-bundled/chrome/26.623.61825/scripts/browser-client.mjs

  1. Tried to select Chrome with:

agent.browsers.get("extension")

  1. It failed with:

Browser is not available: extension

  1. Checked available browser targets:

agent.browsers.list()

Result:
``json
[]
``

Diagnostics performed:

  • Chrome running check: passed

``text
Google Chrome running: yes
pid: 59331
process: Google Chrome
``

  • Installed browser check: passed

```text
Installed known internet browsers

  • Google Chrome

bundle id: com.google.Chrome
version: 145.0.7632.76
path: /Applications/Google Chrome.app
```

  • Codex Chrome Extension check: passed

``json
{
"extensionId": "hehggadaopoacecdllhhajmbjkdcmajg",
"selectedProfileDirectory": "Default",
"installed": true,
"enabled": true,
"versions": ["1.1.5_0"],
"exitCode": 0
}
``

  • Native host manifest check: passed

``json
{
"manifestPath": "/Users/xxx/Library/Application Support/Google/Chrome/NativeMessagingHosts/com.openai.codexextension.json",
"expectedHostName": "com.openai.codexextension",
"actualHostName": "com.openai.codexextension",
"expectedOrigin": "chrome-extension://hehggadaopoacecdllhhajmbjkdcmajg/",
"exists": true,
"nameMatches": true,
"hasExpectedOrigin": true,
"correct": true,
"problem": null
}
``

Recovery attempt:

  • Tried opening a Chrome window via the plugin script:

node scripts/open-chrome-window.js

  • It failed with:

``text
Command failed: open -n -a /Applications/Google Chrome.app --args --profile-directory=Default --new-window about:blank
The application /Applications/Google Chrome.app cannot be opened for an unexpected reason,
error=Error Domain=NSOSStatusErrorDomain Code=-10827
"kLSNoExecutableErr: The executable is missing"
``

Summary:

Although Chrome is installed and running, the Codex Chrome Extension is installed and enabled, and the native host manifest appears correct, the Chrome plugin cannot discover any browser targets. agent.browsers.list() returns an empty array, and agent.browsers.get("extension") fails with Browser is not available: extension.

This prevented Codex from opening the target URL through the Chrome plugin.

What is the expected behavior?

vs code should work just like codex app do.

Additional information

_No response_

View original on GitHub ↗

3 Comments

github-actions[bot] contributor · 2 months ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

  • #29389
  • #29999
  • #30155

Powered by Codex Action

castromau · 1 month ago

Yes, the same here. It started working when that extension was released, but suddenly stopped working. Now I develop on VS Code, run commands on Terminal, but for tests using @Chrome skill I need to use Codex App.
Not really aware if it also happens on windows (but on quick google search it was already reported little ago).
The bizarre is that if I use @Computer (use) skill it works, VS Code Codex extension can perform test actions (not as beautiful as @Chrome skill in separated tab, but still works).
We got these two workarounds fellow, but still not what I expect.

patchpanel-dotca · 1 month ago

Independent reproduction from Codex Desktop on macOS.

Environment:

  • macOS 15.7.5 (24G623)
  • Bundled Chrome plugin: 26.707.72221
  • Google Chrome: 150.0.7871.115
  • ChatGPT Chrome Extension ID: hehggadaopoacecdllhhajmbjkdcmajg
  • Selected Chrome profile: Profile 3

Observed:

  • Chrome is installed and running.
  • The extension is installed and enabled in Profile 3.
  • The native messaging host manifest exists and validates with the expected host/origin.
  • The user already uninstalled/reinstalled the plugin and extension; this did not resolve the failure.
  • Browser selection still fails with Browser is not available: extension.
  • The plugin-provided launch helper fails with:

NSOSStatusErrorDomain Code=-10827 "kLSNoExecutableErr: The executable is missing"
while attempting to open /Applications/Google Chrome.app.

  • The Codex in-app browser remains available, so the failure is isolated to the Chrome plugin/backend path.

This confirms the issue is not resolved by the documented reinstall/re-add recovery steps. Please treat the Chrome plugin/backend as defective in this environment and investigate backend discovery plus the helper's application-launch handling.