diff --git a/manifests/Mozilla/Firefox/77.0.1.yaml b/manifests/Mozilla/Firefox/77.0.1.yaml
new file mode 100644
index 000000000..c41d6e56d
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+++ b/manifests/Mozilla/Firefox/77.0.1.yaml
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+Id: Mozilla.Firefox
+Publisher: Mozilla
+Name: Firefox
+Description: Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.
+Homepage: https://www.mozilla.org/en-US/firefox/new/
+Tags: Browser, Mozilla, Firefox
+License: Mozilla Public License Version 2.0
+LicenseUrl: https://www.mozilla.org/en-US/MPL/2.0/
+Version: 77.0.1
+
+InstallerType: msi
+Installers:
+  - Arch: x64
+    Url: https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/win64/en-US/Firefox%20Setup%2077.0.1.msi
+    Sha256: 14ED31F7981BF9A5855812998DA286CCA34416283315EE4234F9F6B00F38856A