diff --git a/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.installer.yaml b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.installer.yaml
new file mode 100644
index 000000000..971c1e5d8
--- /dev/null
+++ b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.installer.yaml
@@ -0,0 +1,38 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.0.0.schema.json
+PackageIdentifier: Mozilla.Firefox
+PackageVersion: 78.0.1
+FileExtensions:
+- html
+- htm
+- url
+Protocols:
+- http
+- https
+Commands:
+- firefox
+MinimumOSVersion: 10.0.0.0
+Installers:
+- Architecture: x64
+  InstallerType: msi
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.1/win64/en-US/Firefox%20Setup%2078.0.1.msi
+  InstallerSha256: 9CD69FA4B082DFBFC82E2F04FB2D8109BBE04B953B186780F79D2316BF536FDA
+  Scope: machine
+  InstallerLocale: en-US
+- Architecture: x86
+  InstallerType: msi
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.1/win32/en-US/Firefox%20Setup%2078.0.1.msi
+  InstallerSha256: 2DA80FAC69B69FC1DF135B59B4FADE86569F0350D16F0D86BB640EB2C611FD15
+  Scope: machine
+  InstallerLocale: en-US
+- Architecture: arm64
+  InstallerType: exe
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.1/win64-aarch64/en-US/Firefox%20Setup%2078.0.1.exe
+  InstallerSha256: 90A7AD40D13A6EF76CFFED31E33641F7494C14421A57F259B9AACBB65E991ED8
+  Scope: machine
+  InstallerLocale: en-US
+  InstallerSwitches:
+    Silent: /S
+    SilentWithProgress: /S
+ManifestType: installer
+ManifestVersion: 1.0.0
+
diff --git a/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.locale.en-US.yaml b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.locale.en-US.yaml
new file mode 100644
index 000000000..272c4a912
--- /dev/null
+++ b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.locale.en-US.yaml
@@ -0,0 +1,19 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.defaultlocale.1.0.0.schema.json
+PackageIdentifier: Mozilla.Firefox
+PackageVersion: 78.0.1
+PackageLocale: en-US
+Author: Mozilla
+Moniker: firefox
+Tags:
+- Browser
+- Mozilla
+- Firefox
+PackageUrl: https://www.mozilla.org/en-US/firefox/new/
+LicenseUrl: https://www.mozilla.org/en-US/MPL/2.0/
+Publisher: Mozilla
+PackageName: Firefox
+License: Mozilla Public License Version 2.0
+ShortDescription: Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.
+ManifestType: defaultLocale
+ManifestVersion: 1.0.0
+
diff --git a/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.yaml b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.yaml
index b12af11e4..7c6c39830 100644
--- a/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.yaml
+++ b/manifests/m/Mozilla/Firefox/78.0.1/Mozilla.Firefox.yaml
@@ -1,31 +1,7 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.version.1.0.0.schema.json
 PackageIdentifier: Mozilla.Firefox
-Publisher: Mozilla
-PackageName: Firefox
-Author: Mozilla
-ShortDescription: Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.
-Moniker: firefox
-Tags:
-- Browser
-- Mozilla
-- Firefox
-FileExtensions:
-- http
-- https
-PackageUrl: https://www.mozilla.org/en-US/firefox/new/
-License: Mozilla Public License Version 2.0
-LicenseUrl: https://www.mozilla.org/en-US/MPL/2.0/
-MinimumOSVersion: 10.0.0.0
 PackageVersion: 78.0.1
-InstallerSwitches:
-  Custom: /norestart
-  Silent: /qn
-  SilentWithProgress: /qb
-InstallerType: msi
-Installers:
-- Architecture: x64
-  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.1/win64/en-US/Firefox%20Setup%2078.0.1.msi
-  InstallerSha256: 9cd69fa4b082dfbfc82e2f04fb2d8109bbe04b953b186780f79d2316bf536fda
-  Scope: machine
-PackageLocale: en-US
-ManifestType: singleton
+DefaultLocale: en-US
+ManifestType: version
 ManifestVersion: 1.0.0
+