diff --git a/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.installer.yaml b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.installer.yaml
new file mode 100644
index 000000000..49ac1a9ac
--- /dev/null
+++ b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.installer.yaml
@@ -0,0 +1,26 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.0.0.schema.json
+PackageIdentifier: Mozilla.FirefoxESR
+PackageVersion: 78.10.0esr
+Installers:
+- Architecture: x64
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.10.0esr/win64/en-US/Firefox%20Setup%2078.10.0esr.msi
+  InstallerSha256: FA0EF2E01CBC72BEC9AEE15A24A973C7687B657A75AC2B3D2F5F57336BECD90D
+  InstallerType: msi
+- Architecture: x86
+  InstallerType: msi
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.10.0esr/win32/en-US/Firefox%20Setup%2078.10.0esr.msi
+  InstallerSha256: 94D89F92D7A1574BA1E47DEE42E8C9BD59BF48DCB547F9E994F544BE30915FF9
+  Scope: machine
+  InstallerLocale: en-US
+- Architecture: arm64
+  InstallerType: exe
+  InstallerUrl: https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.10.0esr/win64-aarch64/en-US/Firefox%20Setup%2078.10.0esr.exe
+  InstallerSha256: E5F09E1E078C4AD97764DE7D6D66D79D59209EA796060FECB9BDEE8922624613
+  Scope: machine
+  InstallerLocale: en-US
+  InstallerSwitches:
+    Silent: /S
+    SilentWithProgress: /S
+ManifestType: installer
+ManifestVersion: 1.0.0
+
diff --git a/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.locale.en-US.yaml b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.locale.en-US.yaml
new file mode 100644
index 000000000..a40659bb1
--- /dev/null
+++ b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.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.FirefoxESR
+PackageVersion: 78.10.0esr
+PackageLocale: en-US
+LicenseUrl: https://www.mozilla.org/en-US/MPL/2.0/
+Moniker: firefoxesr
+Tags:
+- browser
+- firefox
+- mozilla
+- esr
+PackageUrl: https://www.mozilla.org/en-US/firefox/enterprise/
+Publisher: Mozilla
+PackageName: Firefox ESR
+License: Mozilla Public License V2.0
+ShortDescription: Get unmatched data protection on the release cadence that suits you with Firefox for enterprise.
+ManifestType: defaultLocale
+ManifestVersion: 1.0.0
+
diff --git a/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.yaml b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.yaml
new file mode 100644
index 000000000..c5016ef89
--- /dev/null
+++ b/manifests/m/Mozilla/FirefoxESR/78.10.0esr/Mozilla.FirefoxESR.yaml
@@ -0,0 +1,7 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.version.1.0.0.schema.json
+PackageIdentifier: Mozilla.FirefoxESR
+PackageVersion: 78.10.0esr
+DefaultLocale: en-US
+ManifestType: version
+ManifestVersion: 1.0.0
+