diff --git a/manifests/m/Mozilla/Thunderbird/Thunderbird/78.1.0 (JA)/Mozilla.Thunderbird.Thunderbird.yaml b/manifests/m/Mozilla/Thunderbird/Thunderbird/78.1.0 (JA)/Mozilla.Thunderbird.Thunderbird.yaml
deleted file mode 100644
index e256f7795..000000000
--- a/manifests/m/Mozilla/Thunderbird/Thunderbird/78.1.0 (JA)/Mozilla.Thunderbird.Thunderbird.yaml	
+++ /dev/null
@@ -1,22 +0,0 @@
-PackageIdentifier: Mozilla.Thunderbird.Thunderbird
-PackageVersion: 78.1.0 (JA)
-PackageName: Thunderbird (Japanese)
-Publisher: Mozilla
-License: Mozilla Public License Version 2.0
-LicenseUrl: https://www.mozilla.org/en-US/MPL/2.0/
-Moniker: thunderbird
-Tags:
-- thunderbird
-- email
-- E-mail
-- Thunderbird (Japanese)
-ShortDescription: Thunderbird is a free email application that’s easy to set up and customize!
-PackageUrl: https://www.thunderbird.net
-Installers:
-- Architecture: x64
-  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/thunderbird/releases/78.1.0/win64/ja/Thunderbird%20Setup%2078.1.0.msi
-  InstallerSha256: C34F01D09231077405C68F5E6921478EF0DE7E1B21ABBFF347276EF8C801A9B7
-  InstallerType: msi
-PackageLocale: en-US
-ManifestType: singleton
-ManifestVersion: 1.0.0