--- a/browser/branding/nightly/branding.nsi
+++ b/browser/branding/nightly/branding.nsi
@@ -4,16 +4,17 @@
 
 # NSIS branding defines for nightly builds.
 # The official release build branding.nsi is located in other-license/branding/firefox/
 # The unofficial build branding.nsi is located in browser/branding/unofficial/
 
 # BrandFullNameInternal is used for some registry and file system values
 # instead of BrandFullName and typically should not be modified.
 !define BrandFullNameInternal "Nightly"
+!define BrandFullName         "Firefox Nightly"
 !define CompanyName           "mozilla.org"
 !define URLInfoAbout          "https://www.mozilla.org"
 !define HelpLink              "https://support.mozilla.org"
 
 !define URLStubDownload32 "http://download.mozilla.org/?os=win&lang=${AB_CD}&product=firefox-nightly-latest"
 !define URLStubDownload64 "http://download.mozilla.org/?os=win64&lang=${AB_CD}&product=firefox-nightly-latest"
 !define URLManualDownload "https://www.mozilla.org/${AB_CD}/firefox/installer-help/?channel=nightly&installer_lang=${AB_CD}"
 !define URLSystemRequirements "https://www.mozilla.org/firefox/system-requirements/"

--- a/browser/branding/nightly/configure.sh
+++ b/browser/branding/nightly/configure.sh
@@ -1,5 +1,5 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-MOZ_APP_DISPLAYNAME=Nightly
+MOZ_APP_DISPLAYNAME=FirefoxNightly

--- a/browser/branding/nightly/locales/en-US/brand.dtd
+++ b/browser/branding/nightly/locales/en-US/brand.dtd
@@ -1,9 +1,9 @@
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 <!ENTITY  brandShorterName      "Nightly">
 <!ENTITY  brandShortName        "Nightly">
-<!ENTITY  brandFullName         "Nightly">
+<!ENTITY  brandFullName         "Firefox Nightly">
 <!ENTITY  vendorShortName       "Mozilla">
 <!ENTITY  trademarkInfo.part1   " ">

--- a/browser/branding/nightly/locales/en-US/brand.properties
+++ b/browser/branding/nightly/locales/en-US/brand.properties
@@ -1,10 +1,10 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 brandShorterName=Nightly
 brandShortName=Nightly
-brandFullName=Nightly
+brandFullName=Firefox Nightly
 vendorShortName=Mozilla
 
 syncBrandShortName=Sync