diff --git a/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.installer.yaml b/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.installer.yaml
new file mode 100644
index 000000000..20925adab
--- /dev/null
+++ b/manifests/m/Mozilla/Firefox/88.0/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: "88.0"
+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/88.0/win64/en-US/Firefox%20Setup%2088.0.msi
+  InstallerSha256: EC8209C15D75914D4F103DCDDF4459D2EC95477F58644DFBB51475AD04FB6A7E
+  Scope: machine
+  InstallerLocale: en-US
+- Architecture: x86
+  InstallerType: msi
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0/win32/en-US/Firefox%20Setup%2088.0.msi
+  InstallerSha256: 6378ABBF6C69D5D983F5C853A2D8012E32609B03598D91F2EFA7671DE342F20C
+  Scope: machine
+  InstallerLocale: en-US
+- Architecture: arm64
+  InstallerType: exe
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0/win64-aarch64/en-US/Firefox%20Setup%2088.0.exe
+  InstallerSha256: B60FD9BD1AEFBAB7739BE73320353FE22FBBABC433222330DE6FA839A3561126
+  Scope: machine
+  InstallerLocale: en-US
+  InstallerSwitches:
+    Silent: /S
+    SilentWithProgress: /S
+ManifestType: installer
+ManifestVersion: 1.0.0
+
diff --git a/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.locale.en-US.yaml b/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.locale.en-US.yaml
new file mode 100644
index 000000000..95d6b16f5
--- /dev/null
+++ b/manifests/m/Mozilla/Firefox/88.0/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: "88.0"
+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/88.0/Mozilla.Firefox.yaml b/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.yaml
new file mode 100644
index 000000000..f512a031b
--- /dev/null
+++ b/manifests/m/Mozilla/Firefox/88.0/Mozilla.Firefox.yaml
@@ -0,0 +1,7 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.version.1.0.0.schema.json
+PackageIdentifier: Mozilla.Firefox
+PackageVersion: "88.0"
+DefaultLocale: en-US
+ManifestType: version
+ManifestVersion: 1.0.0
+