# Codex Browser plugin fails trusted RPC dependency validation on Windows

**URL:** <https://community.openai.com/t/codex-browser-plugin-fails-trusted-rpc-dependency-validation-on-windows/1391055>\
**Category:** Codex\
**Tags:** bug\
**Created:** [August 18, 2026, 1:25pm UTC](https://community.openai.com/t/codex-browser-plugin-fails-trusted-rpc-dependency-validation-on-windows/1391055 "2026-08-18T13:25:41Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![Vrapa](https://avatars.discourse-cdn.com/v4/letter/v/a587f6/32.png) [@Vrapa](https://community.openai.com/u/Vrapa)\
**Post date:** [August 19, 2026, 11:23am UTC](https://community.openai.com/t/codex-browser-plugin-fails-trusted-rpc-dependency-validation-on-windows/1391055/3 "2026-08-19T11:23:36Z")

</div>

I can confirm the same issue on Windows 11 x64.

It affects all browser integrations using the shared browser service: the in-app browser, Chrome, and Edge. The failure occurs during initialization, before browser discovery or backend selection.

Environment:

- Codex desktop package: OpenAI.Codex\_26.814.5167.0\_x64
- Browser plugin bundle: 26.814.41407
- Node.js: v24.19.0
- npm: 11.17.0
- @oai/sky: 0.6.16

Exact error:

Trusted RPC dependency must resolve within a configured trusted code path: file:///C:/Users//.codex/plugins/cache/openai-bundled/browser/26.814.41407/scripts/browser-service.mjs

The referenced file physically exists below the configured trusted root C:\Users.codex. There are no symlinks, junctions, or reparse points in the path, and the file permissions are valid.

I have already tried:

- Windows Repair
- complete uninstall and reinstall
- regenerating the entire cua\_node runtime
- regenerating the browser plugin cache
- verifying Node.js and npm
- checking both browser JavaScript bundles with node --check

The regenerated runtime and browser-plugin files were byte-for-byte identical, and the error remained.

This appears to be a Windows path-canonicalization or trusted-root containment regression, or a version mismatch between the desktop app, cua\_node runtime, and bundled browser service. It does not appear to be caused by a browser extension, missing dependencies, permissions, or a corrupted cache.

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_[View the full topic](https://community.openai.com/t/codex-browser-plugin-fails-trusted-rpc-dependency-validation-on-windows/1391055)._