diff --git a/browser/branding/aurora/branding.nsi b/browser/branding/aurora/branding.nsi
index b6e122dc369f..fa2ef778d78f 100644
--- a/browser/branding/aurora/branding.nsi
+++ b/browser/branding/aurora/branding.nsi
@@ -10,7 +10,6 @@
 # instead of BrandFullName and typically should not be modified.
 !define BrandFullNameInternal "Firefox Developer Edition"
 !define BrandShortName        "Firefox Developer Edition"
-!define BrandFullName         "Firefox Developer Edition"
 !define CompanyName           "mozilla.org"
 !define URLInfoAbout          "https://www.mozilla.org"
 !define HelpLink              "https://support.mozilla.org"
diff --git a/browser/branding/official/branding.nsi b/browser/branding/official/branding.nsi
index ba248218e74c..a6025a326d5c 100644
--- a/browser/branding/official/branding.nsi
+++ b/browser/branding/official/branding.nsi
@@ -9,7 +9,6 @@
 # BrandFullNameInternal is used for some registry and file system values
 # instead of BrandFullName and typically should not be modified.
 !define BrandFullNameInternal "Mozilla Firefox"
-!define BrandFullName         "Mozilla Firefox"
 !define CompanyName           "Mozilla Corporation"
 !define URLInfoAbout          "https://www.mozilla.org"
 !define URLUpdateInfo         "https://www.mozilla.org/firefox/${AppVersion}/releasenotes"
diff --git a/browser/branding/unofficial/branding.nsi b/browser/branding/unofficial/branding.nsi
index 257507542126..8a81823311fe 100644
--- a/browser/branding/unofficial/branding.nsi
+++ b/browser/branding/unofficial/branding.nsi
@@ -9,7 +9,6 @@
 # BrandFullNameInternal is used for some registry and file system values
 # instead of BrandFullName and typically should not be modified.
 !define BrandFullNameInternal "Mozilla Developer Preview"
-!define BrandFullName         "Mozilla Developer Preview"
 !define CompanyName           "mozilla.org"
 !define URLInfoAbout          "https://www.mozilla.org"
 !define HelpLink              "https://support.mozilla.org"
diff --git a/browser/installer/windows/nsis/defines.nsi.in b/browser/installer/windows/nsis/defines.nsi.in
index 0a8d1da341ad..3626da45d493 100644
--- a/browser/installer/windows/nsis/defines.nsi.in
+++ b/browser/installer/windows/nsis/defines.nsi.in
@@ -36,6 +36,7 @@
 !ifndef DEV_EDITION
 !define BrandShortName        "@MOZ_APP_DISPLAYNAME@"
 !endif
+!define BrandFullName         "${BrandFullNameInternal}"
 
 !define CERTIFICATE_NAME            "Mozilla Corporation"
 !define CERTIFICATE_ISSUER          "DigiCert SHA2 Assured ID Code Signing CA"