diff --git a/manifests/Mozilla/Firefox/81.0.yaml b/manifests/Mozilla/Firefox/81.0.yaml
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+# ================== General ==================
+Id: Mozilla.Firefox
+Publisher: Mozilla
+Name: Firefox
+Author: Mozilla
+Description: Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.
+AppMoniker: firefox
+Tags: Browser, Mozilla, Firefox
+FileExtensions: html, htm, url
+Protocols: http, https
+Commands: firefox
+
+# ================== License ==================
+Homepage: 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/
+
+# ================= Installer =================
+MinOSVersion: 10.0.0.0
+#Channel: stable                # Channel is not supported in this preview (5/24/2020)
+Version: 81.0
+
+InstallerType: msi
+Installers:
+  - Arch: x64
+    Url: https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0/win64/en-US/Firefox%20Setup%2081.0.msi
+    Sha256: 739d5795ca6bf90ede8f8768f36538ac678176533883d95346507acbd288ea41
+    Scope: machine
+    Language: en-US
+  #- Arch: x86                  # Support for multiple installers are not supported in this preview (5/24/2020)
+    #Url: https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/win32/en-US/Firefox%20Setup%2080.0.1.msi
+    #Sha256: 
+    #Scope: machine
+    #Language: en-US
+
+# ManifestVersion: 0.1.0