[Update Request]:

### What type of update are you requesting?

A new version of an existing package

### Current Package Identifier

Mozilla.Thunderbird.it

### Package Version

148.0.1

### Please describe the changes you would like to see

PackageIdentifier: Mozilla.Thunderbird.it
PackageVersion: 148.0.1
Moniker: thunderbird
Tags:
- email
- mail
PackageLocale: en-US >

English: Critical Metadata Correction. The PackageLocale is incorrectly set to en-US while the InstallerUrl correctly points to the Italian (/it/) binary. This causes winget download to generate incorrect filenames (ending in _en-US.exe).

Author: Mozilla Foundation
CopyrightUrl: https://www.mozilla.org/foundation/trademarks/policy
Description: "Thunderbird is a free and open source email, newsfeed, chat, and calendaring
client, that\u2019s easy to set up and customize. One of the core principles of
Thunderbird is the use and promotion of open standards - this focus is a rejection
of our world of closed platforms and services that can\u2019t communicate with each
other. We want our users to have freedom and choice in how they communicate."
ShortDescription: Thunderbird is a free email application that is easy to set up and
customize - and it's loaded with great features!
License: MPL-2.0
LicenseUrl: https://www.mozilla.org/MPL/2.0
PackageName: Mozilla Thunderbird (it)
PackageUrl: https://www.thunderbird.net/
PrivacyUrl: https://www.mozilla.org/privacy/thunderbird/
Publisher: Mozilla
PublisherSupportUrl: https://support.mozilla.org/
PublisherUrl: https://www.mozilla.org/
ReleaseNotes: "What\u2019s Fixed\nfixed\nLDAP with password stopped working in 148.0"
ReleaseNotesUrl: https://www.thunderbird.net/thunderbird/148.0.1/releasenotes/
Localization:
- Tags:
- "\u7535\u5B50\u90AE\u4EF6"
- "\u90AE\u4EF6"
PackageLocale: zh-CN
Author: "Mozilla \u57FA\u91D1\u4F1A"
CopyrightUrl: https://www.mozilla.org/foundation/trademarks/policy
Description: "Thunderbird \u662F\u4E00\u6B3E\u514D\u8D39\u5F00\u6E90\u7684\u7535\u5B50\u90AE\u4EF6\u3001\u65B0\u95FB\u8BA2\u9605\u3001\u5373\u65F6\u901A\u4FE1\u3001\u65E5\u5386\u5BA2\u6237\u7AEF,\u914D\u7F6E\u7B80\u5355,\u5B9A\u5236\u81EA\u7531\u3002Thunderbird
\u7684\u6838\u5FC3\u51C6\u5219\u4E4B\u4E00\u662F\u4F7F\u7528\u548C\u63A8\u5E7F\u5F00\u653E\u6807\u51C6\u2014\u2014\u91CD\u70B9\u5C31\u662F\u62D2\u7EDD\u4E16\u754C\u4E0A\u6211\u4EEC\u65E0\u6CD5\u76F8\u4E92\u901A\u4FE1\u7684\u5C01\u95ED\u5E73\u53F0\u548C\u670D\u52A1\u3002\u6211\u4EEC\u5E0C\u671B\u6211\u4EEC\u7684\u7528\u6237\u5728\u6C9F\u901A\u65B9\u5F0F\u4E0A\u62E5\u6709\u81EA\u7531\u548C\u9009\u62E9\u3002"
ShortDescription: "Thunderbird \u662F\u4E00\u6B3E\u514D\u8D39\u7684\u90AE\u4EF6\u5E94\u7528\u7A0B\u5E8F,\u914D\u7F6E\u7B80\u5355\u3001\u5B9A\u5236\u81EA\u7531\u3001\u529F\u80FD\u5F3A\u5927!"
License: MPL-2.0
LicenseUrl: https://www.mozilla.org/MPL/2.0
PackageName: Mozilla Thunderbird (it)
PackageUrl: https://www.thunderbird.net/zh-CN/
PrivacyUrl: https://www.mozilla.org/privacy/thunderbird/
Publisher: Mozilla
PublisherSupportUrl: https://support.mozilla.org/zh-CN/
PublisherUrl: https://www.mozilla.org/zh-CN/
ReleaseNotesUrl: https://www.thunderbird.net/thunderbird/148.0.1/releasenotes/
Installers:
- Architecture: x64
InstallerType: nullsoft
InstallerSha256: 45978dae4ed574951941d5c82089f9b958672ff7aafe04247a9f2b8b4cc1c131
InstallerUrl: https://download-installer.cdn.mozilla.net/pub/thunderbird/releases/148.0.1/win64/it/Thunderbird%20Setup%20148.0.1.exe
Scope: machine
ReleaseDate: 2026-03-10
InstallerAbortsTerminal: false
InstallLocationRequired: false
RequireExplicitUpgrade: false
DisplayInstallWarnings: false
DownloadCommandProhibited: false
ArchiveBinariesDependOnPath: false
ProductCode: Mozilla Thunderbird 148.0.1 (x64 it)
UpgradeBehavior: install
FileExtensions:
- eml
- ics
- wdseml
Protocols:
- mailto
- mid
- webcal
- webcals
InstallerSwitches:
Silent: /S /PreventRebootRequired=true
SilentWithProgress: /S /PreventRebootRequired=true
InstallLocation: /InstallDirectoryPath=""
InstallModes:
- interactive
- silent
ManifestVersion: 1.12.0
ManifestType: merged

Locate the manifest for Mozilla.Thunderbird.it at version 148.0.1 and compare its PackageLocale with the Italian installer URL. Check the resulting metadata with winget download; done means the locale metadata matches the requested Italian package and no longer produces an en-US filename.

Written by the indexing model from the issue text.