[Package Issue]: Mozilla.Firefox.es-ES

Nobody has claimed this yet.

### Please confirm these before moving forward

- [x] I have searched for my issue and not found a work-in-progress/duplicate/resolved issue.
- [x] I have not been informed if the issue is resolved in a preview version of the winget client.

### Category of the issue

Installation issue.

### Brief description of your issue

Issue with winget package identification

Running:

winget list --source winget

returns:

Mozilla Firefox (x64 es-ES) ARP\Machine\X64\Mozilla Firefox 146.0.1

This result is incorrect, because the package is reported with an ARP identifier instead of a valid winget package ID.

Running:

Import-Module Microsoft.WinGet.Client
Get-WinGetPackage | Where-Object { $_.Source -eq 'winget' }

returns:

Mozilla Firefox (en-US) Mozilla.Firefox 146.0.1

This result is also incorrect:

Microsoft.WinGet.Client always reports the wrong package name

The package language does not match the installed Spanish (es-ES) version

The returned ID does not correspond to the actual installed variant

Summary

winget list does not return the correct winget ID for Firefox

Microsoft.WinGet.Client returns a different, incorrect package name and locale

Neither output can be reliably used for package management or automation

In short, winget’s package detection and normalization are fundamentally broken in this case.

### Steps to reproduce

Install Mozilla Firefox (x64 es-ES)

Run;
Winget list --sorce "winget"
Import-Module Microsoft.WinGet.Client; Get-WinGetPackage | Where-Object { $_.Source -eq 'winget' }

### Actual behavior

Winget list --sorce "winget" ---> returs;

Mozilla Firefox (x64 es-ES) ARP\Machine\X64\Mozilla Firefox 146.0.1

Import-Module Microsoft.WinGet.Client; Get-WinGetPackage | Where-Object { $_.Source -eq 'winget' } --> returns;

Mozilla Firefox (en-US) Mozilla.Firefox 146.0.1

### Expected behavior

Winget list --sorce "winget" ---> returs;

Mozilla Firefox (x64 es-ES) **Mozilla.Firefox.es-ES** 146.0.1

Import-Module Microsoft.WinGet.Client; Get-WinGetPackage | Where-Object { $_.Source -eq 'winget' } --> returns;

**Mozilla Firefox (x64 es-ES)** Mozilla.Firefox**.es-ES** 146.0.1

### Environment

```raw
Windows: Windows.Desktop v10.0.26200.7462
Arquitectura del sistema: X64
Paquete: Microsoft.DesktopAppInstaller v1.27.350.0
```

### Screenshots and Logs

_No response_

Start by reproducing the `winget list --source winget` and `Get-WinGetPackage` commands with Mozilla Firefox (x64 es-ES) installed. Compare their package name, source ID, locale, and version with the expected `Mozilla.Firefox.es-ES` result; done means both entry points identify the installed Spanish variant consistently.

Written by the indexing model from the issue text.