Chrome plugin is missing from Codex Plugins on Windows even though local plugin files exist

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

26.506.3741.0 Package: OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0

What subscription do you have?

ChatGPT Plus

What platform is your computer?

Windows x64 Codex is installed as a Microsoft Store / WindowsApps package: OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0 Install location: C:\Program Files\WindowsApps\OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0

What issue are you seeing?

Chrome plugin is missing from Codex Plugins on Windows even though all local plugin files exist.

Codex package:
OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0

The installed app bundle contains the Chrome plugin:

C:\Program Files\WindowsApps\OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0\app\resources\plugins\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Test-Path result:
True

However, the automatically generated active bundled marketplace cache does not contain Chrome. After clearing the bundled marketplace cache and restarting Codex, it regenerates only:

C:\Users\kurushin_gi\.codex\.tmp\bundled-marketplaces\openai-bundled\.agents\plugins\marketplace.json
C:\Users\kurushin_gi\.codex\.tmp\bundled-marketplaces\openai-bundled\plugins\browser-use\.codex-plugin\plugin.json
C:\Users\kurushin_gi\.codex\.tmp\bundled-marketplaces\openai-bundled\plugins\latex-tectonic\.codex-plugin\plugin.json

Chrome is missing from the regenerated active marketplace cache.

I also tried creating a persistent local marketplace manually:

C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Test-Path result:
True

I also repaired the plugin cache manually:

C:\Users\kurushin_gi\.codex\plugins\cache\openai-bundled\chrome\0.1.7\.codex-plugin\plugin.json

Test-Path result:
True

I also added this to config.toml:

[marketplaces.openai-bundled]
source_type = "local"
source = 'C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled'

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

But Codex Plugins UI still does not show Chrome.
Searching for Chrome in Plugins returns no result.
Creating a new thread and trying to use @Chrome also does not make Chrome available.

What steps can reproduce the bug?

Uploaded thread: aa5155e6-c083-494a-9e8c-56b1658b6d05

1. Install / update Codex on Windows from Microsoft Store.

1. Open Codex and check the version.

Current version:
26.506.3741.0

Package:
OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0

1. Open Codex → Plugins.

1. Search for Chrome.

1. Chrome plugin is not listed.

1. Close Codex and clear the generated bundled marketplace cache:

Get-Process Codex -ErrorAction SilentlyContinue | Stop-Process -Force

$cacheRoot = Join-Path $env:USERPROFILE ".codex\.tmp\bundled-marketplaces"

if (Test-Path $cacheRoot) {
Rename-Item $cacheRoot ("bundled-marketplaces.backup-" + (Get-Date -Format "yyyyMMdd-HHmmss"))
}

1. Start Codex again and wait for it to regenerate the bundled marketplace cache.

1. Check the regenerated cache:

$cache = Join-Path $env:USERPROFILE ".codex\.tmp\bundled-marketplaces\openai-bundled"

Get-ChildItem $cache -Recurse -Depth 5 -ErrorAction SilentlyContinue |
Where-Object { $_.FullName -match "chrome|plugin\.json|marketplace\.json" } |
Select-Object FullName

1. Actual result:

The regenerated cache only contains browser-use and latex-tectonic:

.agents\plugins\marketplace.json
plugins\browser-use\.codex-plugin\plugin.json
plugins\latex-tectonic\.codex-plugin\plugin.json

It does not contain:

plugins\chrome\.codex-plugin\plugin.json

1. Verify that Chrome does exist inside the installed Codex app bundle:

$pkg = Get-AppxPackage OpenAI.Codex
$chromePath = Join-Path $pkg.InstallLocation "app\resources\plugins\openai-bundled\plugins\chrome"
Test-Path $chromePath

Result:
True

1. Manually copy the bundled marketplace to a persistent local path:

C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled

1. Verify that Chrome exists there:

C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Test-Path result:
True

1. Add the local marketplace and enable Chrome in config.toml:

[marketplaces.openai-bundled]
source_type = "local"
source = 'C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled'

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

1. Start Codex again.

1. Open Codex → Plugins and search for Chrome.

1. Actual result:

Chrome is still missing from the Plugins UI.

What is the expected behavior?

Chrome plugin should appear in Codex → Plugins.

Expected behavior:

1. Codex should include the Chrome plugin in the active bundled marketplace cache, because the installed app bundle already contains it.

1. Searching for Chrome in Codex → Plugins should show the Chrome plugin.

1. I should be able to select / install / enable the Chrome plugin from Codex.

1. After setup, Chrome should be available in new Codex threads, for example via @Chrome or the documented Chrome plugin workflow.

1. Codex should not silently regenerate the active bundled marketplace without the Chrome plugin when the installed app bundle already contains:

C:\Program Files\WindowsApps\OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0\app\resources\plugins\openai-bundled\plugins\chrome

Additional information

This appears to be a plugin registry / marketplace cache issue rather than a missing local file issue.

Summary of diagnostics:

Installed Codex bundle contains Chrome:
True

Path:
C:\Program Files\WindowsApps\OpenAI.Codex_26.506.3741.0_x64__2p2nqsd0c76g0\app\resources\plugins\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Automatically regenerated active bundled marketplace does not contain Chrome:
False

Path checked:
C:\Users\kurushin_gi\.codex\.tmp\bundled-marketplaces\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Persistent local marketplace contains Chrome:
True

Path:
C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled\plugins\chrome\.codex-plugin\plugin.json

Plugin cache contains Chrome:
True

Path:
C:\Users\kurushin_gi\.codex\plugins\cache\openai-bundled\chrome\0.1.7\.codex-plugin\plugin.json

config.toml contains:

[marketplaces.openai-bundled]
source_type = "local"
source = 'C:\Users\kurushin_gi\.codex\local-marketplaces\openai-bundled'

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

Despite this, Codex Plugins UI still does not list Chrome.

This looks like Codex Desktop is either ignoring the local marketplace registration, filtering chrome@openai-bundled from the Plugins UI / runtime registry, or applying a feature flag / availability filter after local plugin discovery.