Codex Chrome plugin bootstrap fails: Cannot redefine property: process

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

ChatGPT/Codex app 26.715.52143 ; Chrome extension: 1.2.27221.15725_0 Bundled Chrome plugin/browser-client: 26.707.41301 Chrome: 150.0.7871.129

What subscription do you have?

Pro

What platform is your computer?

Darwin 24.6.0 arm64 arm

What issue are you seeing?

Feedback ID: 019f4257-c746-74e2-b013-7cc4000632a3

After the 2026-07-20 update, Codex still cannot connect to the Chrome plugin.

Environment:

• ChatGPT/Codex app: 26.715.52143
• ChatGPT Chrome Extension: 1.2.27221.15725_0
• Local bundled Chrome plugin: 26.707.41301
• Chrome is running
• Extension installed/enabled in Default profile
• Native host manifest is correct

Failure:
setupBrowserRuntime({ globals: globalThis }) fails before agent is created:

TypeError: Cannot redefine property: process

Observed:

• hasAgent: false
• hasBrowsers: false
• agent.browsers.get("extension") is never reached

Impact:
This blocks Codex from attaching to Chrome for local app debugging/testing.

What steps can reproduce the bug?

Feedback ID: 019f4257-c746-74e2-b013-7cc4000632a3

What is the expected behavior?

_No response_

Additional information

_No response_