Codex Windows app plugins/marketplace UI inconsistency

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

26.506.31421

What subscription do you have?

ChatGPT Plus.

What platform is your computer?

windows

What issue are you seeing?

Bug report: Codex Windows app plugins/marketplace UI inconsistency

Component:
Codex Windows app, Plugins UI, Marketplace management.

Problem:
After uninstalling/reinstalling Codex and deleting old Codex local data, the Plugins page showed only LaTeX Tectonic. Browser plugin did not appear in the UI, although config.toml showed both plugins enabled:

[plugins."latex-tectonic@openai-bundled"]
enabled = true

[plugins."browser-use@openai-bundled"]
enabled = true

The Browser plugin files were present locally under .codex bundled marketplace/cache paths. @Browser also worked after config/manual marketplace repair, which means the plugin was installed/enabled but hidden or not properly registered in the UI.

Steps attempted:

1. Opened Plugins UI, only LaTeX Tectonic appeared.
2. Tried Add marketplace with local folder and GitHub source.
3. Add marketplace repeatedly failed with generic "Failed to add marketplace" message, without diagnostic details.
4. Cloned https://github.com/openai/plugins.git manually.
5. Verified .agents/plugins/marketplace.json exists.
6. Added local marketplace manually in config.toml.
7. Browser plugin started working.

Expected:
If config.toml has browser-use enabled and the bundled marketplace exists, Browser should appear in Plugins UI. If Add marketplace fails, the app should show a specific error reason.

Actual:
Browser plugin was enabled in config.toml but hidden/not shown in the Plugins UI. Add marketplace failed with only a generic error.

Environment:
Windows Codex app.
User path:
C:\Users\mike_elio

Relevant config:
[marketplaces.openai-bundled]
source_type = "local"
source = '\\?\C:\Users\mike_elio\.codex\.tmp\bundled-marketplaces\openai-bundled'

[plugins."latex-tectonic@openai-bundled"]
enabled = true

[plugins."browser-use@openai-bundled"]
enabled = true

Workaround:
Cloned openai/plugins locally and manually added a local marketplace entry in config.toml.

What steps can reproduce the bug?

1. Install Codex Windows app.

1. Enable bundled plugins, especially Browser and LaTeX Tectonic.

1. Uninstall Codex or delete local Codex data folders, including some of:

C:\Users\<user>\AppData\Roaming\Codex
C:\Users\<user>\AppData\Local\Codex
C:\Users\<user>\.codex

1. Reinstall or reopen Codex.

1. Open the Plugins page.

1. Observe that only LaTeX Tectonic appears in the Plugins UI, while Browser is missing.

1. Open:

C:\Users\<user>\.codex\config.toml

1. Notice that Browser may still be enabled in config:

[plugins."browser-use@openai-bundled"]
enabled = true

1. Try adding the OpenAI plugins marketplace from the UI using:

https://github.com/openai/plugins.git
or a local clone of that repo.

1. Click Add marketplace.

1. The UI shows only:

Failed to add marketplace
without a detailed error reason.

What is the expected behavior?

_No response_

Additional information

_No response_
Related Codex feedback/session ID:
eae2d8c6-d6e8-43e8-85cf-82324a9c9977