Codex Windows Chrome Integration Broken After Recent Update

Resolved 💬 3 comments Opened Jun 2, 2026 by C6H14N2O2 Closed Aug 4, 2026

💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

What version of the Codex App are you using (From “About Codex” dialog)?

Codex package version: 26.527.7698.0 Codex About dialog version: 26.527.60818

What subscription do you have?

Plus

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

After a recent Codex update, Chrome integration stopped working completely.

The Codex Chrome extension fails with:

"Unable to find Electron app"
"Cannot find module ...\google-chrome"

In Codex, Computer Use reports that plugins are unavailable and Chrome no longer appears as an available browser.

As a result, Codex can no longer control Chrome or access Outlook sessions that previously worked.

What steps can reproduce the bug?

Install Codex from the Microsoft Store (version 26.527.7698.0).
Install or reconnect the official Codex Chrome extension.
Open Google Chrome.
Click the Codex extension icon or attempt to connect Chrome from Codex.
Observe the error:

"Unable to find Electron app"
"Cannot find module ...\google-chrome"

Additional symptoms:

Computer Use shows "plugins unavailable".
Chrome does not appear in the list of available browsers.
Browser-based tasks such as Outlook access fail.

The issue appeared immediately after a recent Codex update. The same machine and configuration worked correctly before the update.

What is the expected behavior?

The Codex Chrome extension should successfully launch and connect to the installed Codex application.

Chrome should appear under Computer Use as an available browser, and Computer Use plugins should be available.

Browser-controlled tasks, including access to authenticated Outlook sessions through Chrome, should function normally as they did before the recent update.

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.

#25297
#25822
#25734
#25635
#25203

Powered by Codex Action

C6H14N2O2 · 2 months ago

This may be related to #25822, #25734 and #25297.

I am seeing the same Electron / codex:// protocol issues, but I also observe:

Computer Use plugins unavailable
Chrome disappears from the Computer Use browser list
Outlook access through Chrome no longer works
Codex package version 26.527.7698.0 while About dialog reports 26.527.60818

If maintainers consider this a duplicate, feel free to close it.

C6H14N2O2 · 2 months ago

This issue now affects both Browser Use and Computer Use, not only Chrome integration.

Additional diagnostics (Windows 11)

Codex version: 26.602.30954

Symptoms:

Settings > Browser: "Embedded browser plugin unavailable"
Settings > Computer Use: "Computer use plugins unavailable"

What I verified:

Plugin cache exists:

C:\Users\Joel\.codex\plugins\cache\openai-bundled\chrome
C:\Users\Joel\.codex\plugins\cache\openai-bundled\browser

.codex-global-state.json contains:

"electron-chrome-extension-sync-managed-plugin-ids":["chrome@openai-bundled"]
local remote-control installation/environment IDs

Chrome plugin files are present:

C:\Users\Joel\.codex\plugins\cache\openai-bundled\chrome\latest\extension-host\windows\x64\extension-host.exe

Launching extension-host.exe manually succeeds and remains running.

Get-Process extension-host shows active processes.

Reinstalling Codex and reinstalling the Chrome extension did not resolve the issue.

Native messaging host is also correctly installed:

%LOCALAPPDATA%\OpenAI\extension\com.openai.codexextension.json exists.
It points to:

C:\Users\Joel\.codex\plugins\cache\openai-bundled\chrome\latest\extension-host\windows\x64\extension-host.exe
The Chrome extension origin is present:

chrome-extension://hehggadaopoacecdllhhajmbjkdcmajg/

This suggests the bundled browser plugins, native messaging host, and extension host are installed and executable, but Codex still reports Browser Use and Computer Use as unavailable in the UI.