Adding upstream version 110.0.1.upstream/110.0.1 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
commit: 43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree: 620249daf56c0258faa40cbdcf9cfba06de2a846 /browser/installer/windows/nsis
parent: Initial commit. (diff)
download: firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
14 files changed, 7534 insertions, 0 deletions
diff --git a/browser/installer/windows/nsis/content/installing.html b/browser/installer/windows/nsis/content/installing.html
new file mode 100644
index 0000000000..e7b4450065
--- /dev/null
+++ b/browser/installer/windows/nsis/content/installing.html
@@ -0,0 +1,43 @@
+<!doctype html>
+
+<!-- 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/. -->
+
+<html>
+<head>
+
+<meta charset="UTF-8">
+<meta http-equiv="X-UA-Compatible" content="IE=8">
+
+<link rel="stylesheet" href="stub_common.css">
+<link rel="stylesheet" href="installing_page.css">
+
+<script src="stub_common.js"></script>
+<script src="installing.js"></script>
+
+</head>
+<body>
+
+<img id="background" src="bgstub.jpg" alt="" role="presentation">
+
+<div id="text_column">
+  <div id="text_column_container">
+    <h1 id="header"></h1>
+    <div id="content"></div>
+  </div>
+</div>
+
+<div id="installing">
+  <div id="label" tabindex="0"></div>
+  <div id="progress_background">
+    <div id="progress_bar" role="progressbar" aria-labelledby="label" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0" tabindex="0"></div>
+  </div>
+</div>
+
+<div id="blurb"></div>
+
+<div id="footer"></div>
+
+</body>
+</html>
diff --git a/browser/installer/windows/nsis/content/installing.js b/browser/installer/windows/nsis/content/installing.js
new file mode 100644
index 0000000000..869c76c324
--- /dev/null
+++ b/browser/installer/windows/nsis/content/installing.js
@@ -0,0 +1,58 @@
+// 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/.
+
+// Length of time (milliseconds) that one blurb stays up before we switch to
+// displaying the next one.
+var BLURB_CYCLE_MS = 20000;
+
+// How frequently we should update the progress bar state, in milliseconds.
+var PROGRESS_BAR_INTERVAL_MS = 250;
+
+window.attachEvent("onload", function() {
+  // Set direction on the two components of the layout.
+  var direction = external.getTextDirection();
+  document.getElementById("text_column").style.direction = direction;
+  document.getElementById("installing").style.direction = direction;
+
+  // Get this page's static strings.
+  var label = document.getElementById("label");
+  label.innerText = external.getUIString("installing_label");
+  document.getElementById("header").innerText = external.getUIString(
+    "installing_header"
+  );
+  document.getElementById("content").innerText = external.getUIString(
+    "installing_content"
+  );
+
+  // Poll and update the progress bar percentage.
+  setInterval(function() {
+    var percent = external.getProgressBarPercent();
+    var progressBar = document.getElementById("progress_bar");
+    progressBar.setAttribute("aria-valuenow", percent);
+    progressBar.style.width = percent + "%";
+  }, PROGRESS_BAR_INTERVAL_MS);
+
+  // Get the blurb strings and initialize the blurb rotation.
+  var currentBlurb = 0;
+  // IE8 adds undefined to the array if there is a trailing comma in an
+  // array literal, so don't allow prettier to add one here.
+  // prettier-ignore
+  var blurbStrings = [
+    external.getUIString("installing_blurb_0"),
+    external.getUIString("installing_blurb_1"),
+    external.getUIString("installing_blurb_2")
+  ];
+  function rotateBlurb() {
+    document.getElementById("blurb").innerText = blurbStrings[currentBlurb];
+    currentBlurb = (currentBlurb + 1) % blurbStrings.length;
+  }
+  rotateBlurb();
+  setInterval(rotateBlurb, BLURB_CYCLE_MS);
+
+  // Focus the label, in order to get the focus in the web page, to
+  // assist screen readers. On Win 7's IE8 this causes the focus rectangle
+  // to be immediately visible, so also hide that here.
+  label.className += " no-focus-outline";
+  label.focus();
+});
diff --git a/browser/installer/windows/nsis/content/profile_cleanup.html b/browser/installer/windows/nsis/content/profile_cleanup.html
new file mode 100644
index 0000000000..4f20aaecba
--- /dev/null
+++ b/browser/installer/windows/nsis/content/profile_cleanup.html
@@ -0,0 +1,42 @@
+<!doctype html>
+
+<!-- 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/. -->
+
+<html>
+<head>
+
+<meta charset="UTF-8">
+<meta http-equiv="X-UA-Compatible" content="IE=8">
+
+<link rel="stylesheet" href="stub_common.css">
+<link rel="stylesheet" href="profile_cleanup_page.css">
+
+<script src="stub_common.js"></script>
+<script src="profile_cleanup.js"></script>
+
+</head>
+<body>
+
+<img id="background" src="bgstub.jpg" alt="" role="presentation">
+
+<form id="profileRefreshForm">
+  <div id="profileRefreshContainer">
+    <h1 id="header"></h1>
+
+    <div id="refreshCheckboxContainer">
+      <input id="refreshCheckbox" type="checkbox" checked />
+      <label id="checkboxLabel" for="refreshCheckbox"></label>
+    </div>
+
+    <div id="refreshButtonContainer">
+      <button type="submit" id="refreshButton"></button>
+    </div>
+  </div>
+</form>
+
+<div id="footer"></div>
+
+</body>
+</html>
diff --git a/browser/installer/windows/nsis/content/profile_cleanup.js b/browser/installer/windows/nsis/content/profile_cleanup.js
new file mode 100644
index 0000000000..016b368b05
--- /dev/null
+++ b/browser/installer/windows/nsis/content/profile_cleanup.js
@@ -0,0 +1,30 @@
+// 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/.
+
+window.attachEvent("onload", function() {
+  // Set text direction.
+  var direction = external.getTextDirection();
+  var profileRefreshForm = document.getElementById("profileRefreshForm");
+  profileRefreshForm.style.direction = direction;
+  var checkboxLabel = document.getElementById("checkboxLabel");
+  checkboxLabel.className += " checkboxLabel-" + direction;
+
+  // Get this page's static strings.
+  document.getElementById("header").innerText = external.getUIString(
+    "cleanup_header"
+  );
+  document.getElementById("refreshButton").innerText = external.getUIString(
+    "cleanup_button"
+  );
+  checkboxLabel.innerText = external.getUIString("cleanup_checkbox");
+
+  // Set up the confirmation button.
+  profileRefreshForm.attachEvent("onsubmit", function() {
+    var doProfileCleanup = document.getElementById("refreshCheckbox").checked;
+    external.gotoInstallPage(doProfileCleanup);
+    return false;
+  });
+
+  document.getElementById("refreshButton").focus();
+});
diff --git a/browser/installer/windows/nsis/content/stub_common.css b/browser/installer/windows/nsis/content/stub_common.css
new file mode 100644
index 0000000000..a8d15512b5
--- /dev/null
+++ b/browser/installer/windows/nsis/content/stub_common.css
@@ -0,0 +1,37 @@
+/* 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/. */
+
+body {
+   height: 100%;
+   width: 100%;
+   margin: 0;
+   padding: 0;
+   overflow: hidden;
+
+   font-family: "Segoe UI", sans-serif;
+}
+
+/* This is an <img> rather than using background-image because IE8
+ * does not support background-size. */
+#background {
+  min-height: 100%;
+  min-width: 100%;
+
+  width: 100%;
+  height: auto;
+
+  position: fixed;
+  top: 0;
+  left: 0;
+
+  z-index: -1;
+}
+
+body.high-contrast #background {
+  display: none;
+}
+
+.no-focus-outline {
+  outline: none;
+}
diff --git a/browser/installer/windows/nsis/content/stub_common.js b/browser/installer/windows/nsis/content/stub_common.js
new file mode 100644
index 0000000000..bcdf809b61
--- /dev/null
+++ b/browser/installer/windows/nsis/content/stub_common.js
@@ -0,0 +1,23 @@
+// 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/.
+
+window.attachEvent("onload", function() {
+  if (parseInt(external.getIsHighContrast())) {
+    document.body.className += " high-contrast";
+  } else {
+    document.body.className += " normal-contrast";
+  }
+
+  document.body.style.fontFamily = external.getFontName() + ", sans-serif";
+
+  // All pages have the global footer (or don't, depending on the branding).
+  document.getElementById("footer").innerText = external.getUIString(
+    "global_footer"
+  );
+
+  // Disallow dragging of the "background" image.
+  document.getElementById("background").attachEvent("ondragstart", function() {
+    return false;
+  });
+});
diff --git a/browser/installer/windows/nsis/defines.nsi.in b/browser/installer/windows/nsis/defines.nsi.in
new file mode 100644
index 0000000000..fd39d599f5
--- /dev/null
+++ b/browser/installer/windows/nsis/defines.nsi.in
@@ -0,0 +1,156 @@
+#filter substitution
+# 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/.
+
+# Defining FunnelcakeVersion will append the value of StubURLVersionAppend to
+# StubURLVersion, append the value of URLManualDownloadAppend to
+# URLManualDownload, and append the value of URLStubDownloadAppend to
+# URLStubDownload. The value of FunnelcakeVersion should not be defined when it
+# is not used and when it is defined its value should never be empty.
+# !define FunnelcakeVersion        "999"
+
+!ifdef FunnelcakeVersion
+!define URLManualDownloadAppend  "&f=${FunnelcakeVersion}"
+!define URLStubDownloadAppend    "-f${FunnelcakeVersion}"
+!define StubURLVersionAppend     "-${FunnelcakeVersion}"
+!else
+!define URLManualDownloadAppend  ""
+!define URLStubDownloadAppend    ""
+!define StubURLVersionAppend     ""
+!endif
+
+# These defines should match application.ini settings
+!define AppName               "Firefox"
+!define AppVersion            "@APP_VERSION@"
+!define GREVersion            @MOZILLA_VERSION@
+!define AB_CD                 "@AB_CD@"
+
+!define FileMainEXE           "@MOZ_APP_NAME@.exe"
+!define PrivateBrowsingEXE    "private_browsing.exe"
+!define MainWindowClass       "MozillaWindowClass"
+!define DialogWindowClass     "MozillaDialogClass"
+!define DDEApplication        "Firefox"
+!define AppRegName            "Firefox"
+!define ToastAumidPrefix      "@MOZ_TOAST_APP_NAME@Toast-"
+
+!define BrandProductName      "Firefox"
+!ifndef DEV_EDITION
+!define BrandShortName        "@MOZ_APP_DISPLAYNAME@"
+!endif
+!ifndef BrandFullName
+!define BrandFullName         "${BrandFullNameInternal}"
+!endif
+
+; The C++ defines in `nsNativeAppSupportWin.h` are 1-based.  The Windows
+; resource IDs in the registry are 0-based.
+!define IDI_APPICON_ZERO_BASED       "0"
+!define IDI_DOCUMENT_ZERO_BASED      "1"
+!define IDI_PBICON_ZERO_BASED        "4"
+!define IDI_DOCUMENT_PDF_ZERO_BASED  "5"
+
+; This one is the location of the Private Browsing icon in
+; private_browsing.exe (as opposed to @MOZ_APP_NAME@.exe)
+!define IDI_PBICON_PB_EXE_ZERO_BASED "0"
+
+!define CERTIFICATE_NAME            "Mozilla Corporation"
+!define CERTIFICATE_ISSUER          "DigiCert SHA2 Assured ID Code Signing CA"
+; Changing the name or issuer requires us to have both the old and the new
+;  in the registry at the same time, temporarily.
+!define CERTIFICATE_NAME_PREVIOUS   "Mozilla Corporation"
+!define CERTIFICATE_ISSUER_PREVIOUS "DigiCert Assured ID Code Signing CA-1"
+
+# LSP_CATEGORIES is the permitted LSP categories for the application. Each LSP
+# category value is ANDed together to set multiple permitted categories.
+# See http://msdn.microsoft.com/en-us/library/ms742253%28VS.85%29.aspx
+# The value below removes all LSP categories previously set.
+!define LSP_CATEGORIES "0x00000000"
+
+!if "@MOZ_UPDATE_CHANNEL@" == ""
+!define UpdateChannel "Unknown"
+!else
+!define UpdateChannel "@MOZ_UPDATE_CHANNEL@"
+!endif
+
+!define AccessibleHandlerCLSID "@MOZ_HANDLER_CLSID@"
+
+#ifdef MOZ_LAUNCHER_PROCESS
+!define MOZ_LAUNCHER_PROCESS
+!define MOZ_LAUNCHER_SUBKEY "Software\Mozilla\${AppName}\Launcher"
+#endif
+
+#ifdef RELEASE_OR_BETA
+!define RELEASE_OR_BETA
+#endif
+
+# Due to official and beta using the same branding this is needed to
+# differentiante between the url used by the stub for downloading.
+!if "@MOZ_UPDATE_CHANNEL@" == "beta"
+!define BETA_UPDATE_CHANNEL
+!endif
+
+!define BaseURLStubPing "http://download-stats.mozilla.org/stub"
+
+# ARCH is used when it is necessary to differentiate the x64 registry keys from
+# the x86 registry keys (e.g. the uninstall registry key).
+#ifdef HAVE_64BIT_BUILD
+!define HAVE_64BIT_BUILD
+#ifdef _ARM64_
+!define ARCH "AArch64"
+!define MinSupportedVer "Microsoft Windows 10 for ARM"
+#else
+!define ARCH "x64"
+!define MinSupportedVer "Microsoft Windows 7 x64"
+#endif
+#else
+!define MinSupportedVer "Microsoft Windows 7"
+!define ARCH "x86"
+#endif
+
+!define MinSupportedCPU "SSE2"
+
+#ifdef MOZ_MAINTENANCE_SERVICE
+!define MOZ_MAINTENANCE_SERVICE
+#endif
+
+#ifdef MOZ_BITS_DOWNLOAD
+!define MOZ_BITS_DOWNLOAD
+#endif
+
+#ifdef MOZ_DEFAULT_BROWSER_AGENT
+!define MOZ_DEFAULT_BROWSER_AGENT
+#endif
+
+!if "@AB_CD@" == "en-US"
+!define MOZ_OPTIONAL_EXTENSIONS
+!else if "@AB_CD@" == "zh-CN"
+!define MOZ_OPTIONAL_EXTENSIONS
+!endif
+
+# To add Private Browsing shortcut argument to setup.exe
+!define MOZ_PRIVATE_BROWSING
+
+# File details shared by both the installer and uninstaller
+VIProductVersion "1.0.0.0"
+VIAddVersionKey "ProductName"     "${BrandShortName}"
+VIAddVersionKey "CompanyName"     "${CompanyName}"
+VIAddVersionKey "LegalCopyright"  "${CompanyName}"
+VIAddVersionKey "FileVersion"     "${AppVersion}"
+VIAddVersionKey "ProductVersion"  "${AppVersion}"
+# Comments is not used but left below commented out for future reference
+# VIAddVersionKey "Comments"        "Comments"
+
+# It isn't possible to get the size of the installation prior to downloading
+# so the stub installer uses an estimate. The size is derived from the size of
+# the complete installer, the size of the extracted complete installer, and at
+# least 15 MB additional for working room.
+!define APPROXIMATE_REQUIRED_SPACE_MB "145"
+
+# Constants for parts of the telemetry submission URL
+!define TELEMETRY_BASE_URL https://incoming.telemetry.mozilla.org/submit
+!define TELEMETRY_NAMESPACE firefox-installer
+!define TELEMETRY_INSTALL_PING_VERSION 1
+!define TELEMETRY_INSTALL_PING_DOCTYPE install
+
+!define TELEMETRY_UNINSTALL_PING_NAMESPACE telemetry
+!define TELEMETRY_UNINSTALL_PING_DOCTYPE uninstall
diff --git a/browser/installer/windows/nsis/extensionsLocale.nsh b/browser/installer/windows/nsis/extensionsLocale.nsh
new file mode 100644
index 0000000000..5a24373bd0
--- /dev/null
+++ b/browser/installer/windows/nsis/extensionsLocale.nsh
@@ -0,0 +1,20 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+; Strings for the optional extensions page. This is not in the locale
+; directory so these strings are only translated to zh-CN.
+
+!if "${AB_CD}" == "en-US"
+LangString EXTENSIONS_PAGE_TITLE 0  "Install Optional Extensions"
+LangString EXTENSIONS_PAGE_SUBTITLE 0  "$ExtensionRecommender recommends these extensions"
+LangString OPTIONAL_EXTENSIONS_CHECKBOX_DESC 0  "Install &Extension:"
+LangString OPTIONAL_EXTENSIONS_DESC 0  "You can add or remove these extensions at any time. Click the menu button and choose “Add-ons”."
+!endif
+
+!if "${AB_CD}" == "zh-CN"
+LangString EXTENSIONS_PAGE_TITLE 0  "安装可选扩展"
+LangString EXTENSIONS_PAGE_SUBTITLE 0  "$ExtensionRecommender 推荐安装以下扩展"
+LangString OPTIONAL_EXTENSIONS_CHECKBOX_DESC 0  "安装扩展(&E):"
+LangString OPTIONAL_EXTENSIONS_DESC 0  "您随时可以点击浏览器的菜单按钮并选择“附加组件”来添加或移除扩展。"
+!endif
+\ No newline at end of file
diff --git a/browser/installer/windows/nsis/installer.nsi b/browser/installer/windows/nsis/installer.nsi
new file mode 100755
index 0000000000..40386f8915
--- /dev/null
+++ b/browser/installer/windows/nsis/installer.nsi
@@ -0,0 +1,2057 @@
+# 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/.
+
+# Required Plugins:
+# AppAssocReg
+#   http://nsis.sourceforge.net/Application_Association_Registration_plug-in
+# ApplicationID
+#   http://nsis.sourceforge.net/ApplicationID_plug-in
+# CityHash
+#   http://searchfox.org/mozilla-central/source/other-licenses/nsis/Contrib/CityHash
+# nsJSON
+#   http://nsis.sourceforge.net/NsJSON_plug-in
+# ShellLink
+#   http://nsis.sourceforge.net/ShellLink_plug-in
+# UAC
+#   http://nsis.sourceforge.net/UAC_plug-in
+# ServicesHelper
+#   Mozilla specific plugin that is located in /other-licenses/nsis
+
+; Set verbosity to 3 (e.g. no script) to lessen the noise in the build logs
+!verbose 3
+
+; 7-Zip provides better compression than the lzma from NSIS so we add the files
+; uncompressed and use 7-Zip to create a SFX archive of it
+SetDatablockOptimize on
+SetCompress off
+CRCCheck on
+
+RequestExecutionLevel user
+
+Unicode true
+ManifestSupportedOS all
+ManifestDPIAware true
+
+!addplugindir ./
+
+Var TmpVal
+Var InstallType
+Var AddStartMenuSC
+Var AddTaskbarSC
+Var AddQuickLaunchSC
+Var AddDesktopSC
+Var AddPrivateBrowsingSC
+Var InstallMaintenanceService
+Var InstallOptionalExtensions
+Var ExtensionRecommender
+Var PageName
+Var PreventRebootRequired
+Var RegisterDefaultAgent
+
+; Telemetry ping fields
+Var SetAsDefault
+Var HadOldInstall
+Var InstallExisted
+Var DefaultInstDir
+Var IntroPhaseStart
+Var OptionsPhaseStart
+Var InstallPhaseStart
+Var FinishPhaseStart
+Var FinishPhaseEnd
+Var InstallResult
+Var LaunchedNewApp
+Var PostSigningData
+
+; By defining NO_STARTMENU_DIR an installer that doesn't provide an option for
+; an application's Start Menu PROGRAMS directory and doesn't define the
+; StartMenuDir variable can use the common InstallOnInitCommon macro.
+!define NO_STARTMENU_DIR
+
+; Attempt to elevate Standard Users in addition to users that
+; are a member of the Administrators group.
+!define NONADMIN_ELEVATE
+
+!define AbortSurveyURL "http://www.kampyle.com/feedback_form/ff-feedback-form.php?site_code=8166124&form_id=12116&url="
+
+; Other included files may depend upon these includes!
+; The following includes are provided by NSIS.
+!include FileFunc.nsh
+!include LogicLib.nsh
+!include MUI.nsh
+!include WinMessages.nsh
+!include WinVer.nsh
+!include WordFunc.nsh
+
+!insertmacro GetOptions
+!insertmacro GetParameters
+!insertmacro GetSize
+!insertmacro StrFilter
+!insertmacro WordFind
+!insertmacro WordReplace
+
+; The following includes are custom.
+!include branding.nsi
+!include defines.nsi
+!include common.nsh
+!include locales.nsi
+
+VIAddVersionKey "FileDescription" "${BrandShortName} Installer"
+VIAddVersionKey "OriginalFilename" "setup.exe"
+
+; Must be inserted before other macros that use logging
+!insertmacro _LoggingCommon
+
+!insertmacro AddDisabledDDEHandlerValues
+!insertmacro ChangeMUIHeaderImage
+!insertmacro ChangeMUISidebarImage
+!insertmacro CheckForFilesInUse
+!insertmacro CleanUpdateDirectories
+!insertmacro CopyFilesFromDir
+!insertmacro CopyPostSigningData
+!insertmacro CreateRegKey
+!insertmacro GetFirstInstallPath
+!insertmacro GetLongPath
+!insertmacro GetPathFromString
+!insertmacro GetParent
+!insertmacro InitHashAppModelId
+!insertmacro IsHandlerForInstallDir
+!insertmacro IsPinnedToTaskBar
+!insertmacro IsUserAdmin
+!insertmacro LogDesktopShortcut
+!insertmacro LogQuickLaunchShortcut
+!insertmacro LogStartMenuShortcut
+!insertmacro ManualCloseAppPrompt
+!insertmacro PinnedToStartMenuLnkCount
+!insertmacro RegCleanAppHandler
+!insertmacro RegCleanMain
+!insertmacro RegCleanUninstall
+!insertmacro RemovePrecompleteEntries
+!insertmacro SetAppLSPCategories
+!insertmacro SetBrandNameVars
+!insertmacro UpdateShortcutAppModelIDs
+!insertmacro UnloadUAC
+!insertmacro WriteRegStr2
+!insertmacro WriteRegDWORD2
+
+; This needs to be inserted after InitHashAppModelId because it uses
+; $AppUserModelID and the compiler can't handle using variables lexically before
+; they've been declared.
+!insertmacro GetInstallerRegistryPref
+
+!include shared.nsh
+
+; Helper macros for ui callbacks. Insert these after shared.nsh
+!insertmacro CheckCustomCommon
+!insertmacro InstallEndCleanupCommon
+!insertmacro InstallOnInitCommon
+!insertmacro InstallStartCleanupCommon
+!insertmacro LeaveDirectoryCommon
+!insertmacro LeaveOptionsCommon
+!insertmacro OnEndCommon
+!insertmacro PreDirectoryCommon
+
+Name "${BrandFullName}"
+OutFile "setup.exe"
+!ifdef HAVE_64BIT_BUILD
+  InstallDir "$PROGRAMFILES64\${BrandFullName}\"
+!else
+  InstallDir "$PROGRAMFILES32\${BrandFullName}\"
+!endif
+ShowInstDetails nevershow
+
+################################################################################
+# Modern User Interface - MUI
+
+!define MOZ_MUI_CUSTOM_ABORT
+!define MUI_CUSTOMFUNCTION_ABORT "CustomAbort"
+!define MUI_ICON setup.ico
+!define MUI_UNICON setup.ico
+!define MUI_WELCOMEPAGE_TITLE_3LINES
+!define MUI_HEADERIMAGE
+!define MUI_HEADERIMAGE_RIGHT
+!define MUI_WELCOMEFINISHPAGE_BITMAP wizWatermark.bmp
+; By default MUI_BGCOLOR is hardcoded to FFFFFF, which is only correct if the
+; Windows theme or high-contrast mode hasn't changed it, so we need to
+; override that with GetSysColor(COLOR_WINDOW) (this string ends up getting
+; passed to SetCtlColors, which uses this custom syntax to mean that).
+!define MUI_BGCOLOR SYSCLR:WINDOW
+
+; Use a right to left header image when the language is right to left
+!ifdef ${AB_CD}_rtl
+!define MUI_HEADERIMAGE_BITMAP_RTL wizHeaderRTL.bmp
+!else
+!define MUI_HEADERIMAGE_BITMAP wizHeader.bmp
+!endif
+
+/**
+ * Installation Pages
+ */
+; Welcome Page
+!define MUI_PAGE_CUSTOMFUNCTION_PRE preWelcome
+!define MUI_PAGE_CUSTOMFUNCTION_SHOW showWelcome
+!define MUI_PAGE_CUSTOMFUNCTION_LEAVE leaveWelcome
+!insertmacro MUI_PAGE_WELCOME
+
+; Custom Options Page
+Page custom preOptions leaveOptions
+
+; Select Install Directory Page
+!define MUI_PAGE_CUSTOMFUNCTION_PRE preDirectory
+!define MUI_PAGE_CUSTOMFUNCTION_LEAVE leaveDirectory
+!define MUI_DIRECTORYPAGE_VERIFYONLEAVE
+!insertmacro MUI_PAGE_DIRECTORY
+
+; Custom Components Page
+!ifdef MOZ_MAINTENANCE_SERVICE
+Page custom preComponents leaveComponents
+!endif
+
+; Custom Shortcuts Page
+Page custom preShortcuts leaveShortcuts
+
+; Custom Extensions Page
+!ifdef MOZ_OPTIONAL_EXTENSIONS
+Page custom preExtensions leaveExtensions
+!endif
+
+; Custom Summary Page
+Page custom preSummary leaveSummary
+
+; Install Files Page
+!insertmacro MUI_PAGE_INSTFILES
+
+; Finish Page
+!define MUI_FINISHPAGE_TITLE_3LINES
+!define MUI_FINISHPAGE_RUN
+!define MUI_FINISHPAGE_RUN_FUNCTION LaunchApp
+!define MUI_FINISHPAGE_RUN_TEXT $(LAUNCH_TEXT)
+!define MUI_PAGE_CUSTOMFUNCTION_PRE preFinish
+!define MUI_PAGE_CUSTOMFUNCTION_SHOW showFinish
+!define MUI_PAGE_CUSTOMFUNCTION_LEAVE postFinish
+!insertmacro MUI_PAGE_FINISH
+
+; Use the default dialog for IDD_VERIFY for a simple Banner
+ChangeUI IDD_VERIFY "${NSISDIR}\Contrib\UIs\default.exe"
+
+################################################################################
+# Install Sections
+
+; Cleanup operations to perform at the start of the installation.
+Section "-InstallStartCleanup"
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $InstallPhaseStart
+
+  SetDetailsPrint both
+  DetailPrint $(STATUS_CLEANUP)
+  SetDetailsPrint none
+
+  SetOutPath "$INSTDIR"
+  ${StartInstallLog} "${BrandFullName}" "${AB_CD}" "${AppVersion}" "${GREVersion}"
+
+  StrCpy $R9 "true"
+  StrCpy $PreventRebootRequired "false"
+  ${GetParameters} $R8
+  ${GetOptions} "$R8" "/INI=" $R7
+  ${Unless} ${Errors}
+    ; The configuration file must also exist
+    ${If} ${FileExists} "$R7"
+      ReadINIStr $R9 $R7 "Install" "RemoveDistributionDir"
+      ReadINIStr $R8 $R7 "Install" "PreventRebootRequired"
+      ${If} $R8 == "true"
+        StrCpy $PreventRebootRequired "true"
+      ${EndIf}
+    ${EndIf}
+  ${EndUnless}
+
+  ${GetParameters} $R8
+  ${InstallGetOption} $R8 "RemoveDistributionDir" $R9
+  ${If} $R9 == "0"
+    StrCpy $R9 "false"
+  ${EndIf}
+  ${InstallGetOption} $R8 "PreventRebootRequired" $PreventRebootRequired
+  ${If} $PreventRebootRequired == "1"
+    StrCpy $PreventRebootRequired "true"
+  ${EndIf}
+
+  ; Remove directories and files we always control before parsing the uninstall
+  ; log so empty directories can be removed.
+  ${If} ${FileExists} "$INSTDIR\updates"
+    RmDir /r "$INSTDIR\updates"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\updated"
+    RmDir /r "$INSTDIR\updated"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\defaults\shortcuts"
+    RmDir /r "$INSTDIR\defaults\shortcuts"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\distribution"
+  ${AndIf} $R9 != "false"
+    RmDir /r "$INSTDIR\distribution"
+  ${EndIf}
+
+  Call CheckIfInstallExisted
+
+  ; Delete the app exe if present to prevent launching the app while we are
+  ; installing.
+  ClearErrors
+  ${DeleteFile} "$INSTDIR\${FileMainEXE}"
+  ${If} ${Errors}
+    ; If the user closed the application it can take several seconds for it to
+    ; shut down completely. If the application is being used by another user we
+    ; can rename the file and then delete is when the system is restarted.
+    Sleep 5000
+    ${DeleteFile} "$INSTDIR\${FileMainEXE}"
+    ClearErrors
+  ${EndIf}
+
+  ; setup the application model id registration value
+  ${InitHashAppModelId} "$INSTDIR" "Software\Mozilla\${AppName}\TaskBarIDs"
+
+  ; Remove the updates directory
+  ${CleanUpdateDirectories} "Mozilla\Firefox" "Mozilla\updates"
+
+  ${RemoveDeprecatedFiles}
+  ${RemovePrecompleteEntries} "false"
+
+  ${If} ${FileExists} "$INSTDIR\defaults\pref\channel-prefs.js"
+    Delete "$INSTDIR\defaults\pref\channel-prefs.js"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\defaults\pref"
+    RmDir "$INSTDIR\defaults\pref"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\defaults"
+    RmDir "$INSTDIR\defaults"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\uninstall"
+    ; Remove the uninstall directory that we control
+    RmDir /r "$INSTDIR\uninstall"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\update-settings.ini"
+    Delete "$INSTDIR\update-settings.ini"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\installation_telemetry.json"
+    Delete "$INSTDIR\installation_telemetry.json"
+  ${EndIf}
+
+  ; Explictly remove empty webapprt dir in case it exists (bug 757978).
+  RmDir "$INSTDIR\webapprt\components"
+  RmDir "$INSTDIR\webapprt"
+
+  ${InstallStartCleanupCommon}
+SectionEnd
+
+Section "-Application" APP_IDX
+  ${StartUninstallLog}
+
+  SetDetailsPrint both
+  DetailPrint $(STATUS_INSTALL_APP)
+  SetDetailsPrint none
+
+  ${LogHeader} "Installing Main Files"
+  ${CopyFilesFromDir} "$EXEDIR\core" "$INSTDIR" \
+                      "$(ERROR_CREATE_DIRECTORY_PREFIX)" \
+                      "$(ERROR_CREATE_DIRECTORY_SUFFIX)"
+
+  ; Register DLLs
+  ; XXXrstrong - AccessibleMarshal.dll can be used by multiple applications but
+  ; is only registered for the last application installed. When the last
+  ; application installed is uninstalled AccessibleMarshal.dll will no longer be
+  ; registered. bug 338878
+  ${LogHeader} "DLL Registration"
+  ClearErrors
+  ${RegisterDLL} "$INSTDIR\AccessibleMarshal.dll"
+  ${If} ${Errors}
+    ${LogMsg} "** ERROR Registering: $INSTDIR\AccessibleMarshal.dll **"
+  ${Else}
+    ${LogUninstall} "DLLReg: \AccessibleMarshal.dll"
+    ${LogMsg} "Registered: $INSTDIR\AccessibleMarshal.dll"
+  ${EndIf}
+
+  ClearErrors
+
+  ${RegisterDLL} "$INSTDIR\AccessibleHandler.dll"
+  ${If} ${Errors}
+    ${LogMsg} "** ERROR Registering: $INSTDIR\AccessibleHandler.dll **"
+  ${Else}
+    ${LogUninstall} "DLLReg: \AccessibleHandler.dll"
+    ${LogMsg} "Registered: $INSTDIR\AccessibleHandler.dll"
+  ${EndIf}
+
+  ClearErrors
+
+  ; Record the Windows Error Reporting module
+  WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows\Windows Error Reporting\RuntimeExceptionHelperModules" "$INSTDIR\mozwer.dll" 0
+  ${If} ${Errors}
+    ${LogMsg} "** ERROR Recording: $INSTDIR\mozwer.dll **"
+  ${Else}
+    ${LogMsg} "Recorded: $INSTDIR\mozwer.dll"
+  ${EndIf}
+
+  ClearErrors
+
+  ; Default for creating Start Menu shortcut
+  ; (1 = create, 0 = don't create)
+  ${If} $AddStartMenuSC == ""
+    StrCpy $AddStartMenuSC "1"
+  ${EndIf}
+
+  ${If} $AddPrivateBrowsingSC == ""
+    StrCpy $AddPrivateBrowsingSC "1"
+  ${EndIf}
+
+  ; Default for creating Quick Launch shortcut (1 = create, 0 = don't create)
+  ${If} $AddQuickLaunchSC == ""
+    ; Don't install the quick launch shortcut on Windows 7
+    ${If} ${AtLeastWin7}
+      StrCpy $AddQuickLaunchSC "0"
+    ${Else}
+      StrCpy $AddQuickLaunchSC "1"
+    ${EndIf}
+  ${EndIf}
+
+  ; Default for creating Desktop shortcut (1 = create, 0 = don't create)
+  ${If} $AddDesktopSC == ""
+    StrCpy $AddDesktopSC "1"
+  ${EndIf}
+
+  ; Default for adding a Taskbar pin (1 = pin, 0 = don't pin)
+  ${If} $AddTaskbarSC == ""
+    StrCpy $AddTaskbarSC "1"
+  ${EndIf}
+
+  ${LogHeader} "Adding Registry Entries"
+  SetShellVarContext current  ; Set SHCTX to HKCU
+  ${RegCleanMain} "Software\Mozilla"
+  ${RegCleanUninstall}
+  ${UpdateProtocolHandlers}
+
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" "Write Test"
+  ${If} ${Errors}
+    StrCpy $TmpVal "HKCU" ; used primarily for logging
+  ${Else}
+    SetShellVarContext all  ; Set SHCTX to HKLM
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    StrCpy $TmpVal "HKLM" ; used primarily for logging
+    ${RegCleanMain} "Software\Mozilla"
+    ${RegCleanUninstall}
+    ${UpdateProtocolHandlers}
+
+    ReadRegStr $0 HKLM "Software\mozilla.org\Mozilla" "CurrentVersion"
+    ${If} "$0" != "${GREVersion}"
+      WriteRegStr HKLM "Software\mozilla.org\Mozilla" "CurrentVersion" "${GREVersion}"
+    ${EndIf}
+  ${EndIf}
+
+  ${RemoveDeprecatedKeys}
+  ${Set32to64DidMigrateReg}
+
+  ; The previous installer adds several regsitry values to both HKLM and HKCU.
+  ; We now try to add to HKLM and if that fails to HKCU
+
+  ; The order that reg keys and values are added is important if you use the
+  ; uninstall log to remove them on uninstall. When using the uninstall log you
+  ; MUST add children first so they will be removed first on uninstall so they
+  ; will be empty when the key is deleted. This allows the uninstaller to
+  ; specify that only empty keys will be deleted.
+  ${SetAppKeys}
+
+  ${FixClassKeys}
+
+  ; Uninstall keys can only exist under HKLM on some versions of windows. Since
+  ; it doesn't cause problems always add them.
+  ${SetUninstallKeys}
+
+  ; On install always add the FirefoxHTML-, FirefoxPDF-, and FirefoxURL- keys.
+  ; An empty string is used for the 5th param because FirefoxHTML- is not a
+  ; protocol handler.
+  ${GetLongPath} "$INSTDIR\${FileMainEXE}" $8
+  StrCpy $2 "$\"$8$\" -osint -url $\"%1$\""
+
+  ; In Win8, the delegate execute handler picks up the value in FirefoxURL- and
+  ; FirefoxHTML- to launch the desktop browser when it needs to.
+  ${AddDisabledDDEHandlerValues} "FirefoxHTML-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                 "${AppRegName} HTML Document" ""
+  ${AddDisabledDDEHandlerValues} "FirefoxPDF-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_PDF_ZERO_BASED}" \
+                                 "${AppRegName} PDF Document" ""
+  ${AddDisabledDDEHandlerValues} "FirefoxURL-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                 "${AppRegName} URL" "true"
+
+  ; For pre win8, the following keys should only be set if we can write to HKLM.
+  ; For post win8, the keys below can be set in HKCU if needed.
+  ${If} $TmpVal == "HKLM"
+    ; Set the Start Menu Internet and Registered App HKLM registry keys.
+    ${SetStartMenuInternet} "HKLM"
+    ${FixShellIconHandler} "HKLM"
+  ${ElseIf} ${AtLeastWin8}
+    ; Set the Start Menu Internet and Registered App HKCU registry keys.
+    ${SetStartMenuInternet} "HKCU"
+    ${FixShellIconHandler} "HKCU"
+  ${EndIf}
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+  ; If the maintenance service page was displayed then a value was already
+  ; explicitly selected for installing the maintenance service and
+  ; and so InstallMaintenanceService will already be 0 or 1.
+  ; If the maintenance service page was not displayed then
+  ; InstallMaintenanceService will be equal to "".
+  ${If} $InstallMaintenanceService == ""
+    Call IsUserAdmin
+    Pop $R0
+    ${If} $R0 == "true"
+    ; Only proceed if we have HKLM write access
+    ${AndIf} $TmpVal == "HKLM"
+      ; The user is an admin, so we should default to installing the service.
+      StrCpy $InstallMaintenanceService "1"
+    ${Else}
+      ; The user is not admin, so we can't install the service.
+      StrCpy $InstallMaintenanceService "0"
+    ${EndIf}
+  ${EndIf}
+
+  ${If} $InstallMaintenanceService == "1"
+    ; The user wants to install the maintenance service, so execute
+    ; the pre-packaged maintenance service installer.
+    ; This option can only be turned on if the user is an admin so there
+    ; is no need to use ExecShell w/ verb runas to enforce elevated.
+    nsExec::Exec "$\"$INSTDIR\maintenanceservice_installer.exe$\""
+  ${EndIf}
+!endif
+
+  ; These need special handling on uninstall since they may be overwritten by
+  ; an install into a different location.
+  StrCpy $0 "Software\Microsoft\Windows\CurrentVersion\App Paths\${FileMainEXE}"
+  ${WriteRegStr2} $TmpVal "$0" "" "$INSTDIR\${FileMainEXE}" 0
+  ${WriteRegStr2} $TmpVal "$0" "Path" "$INSTDIR" 0
+
+  StrCpy $0 "Software\Microsoft\MediaPlayer\ShimInclusionList\$R9"
+  ${CreateRegKey} "$TmpVal" "$0" 0
+  StrCpy $0 "Software\Microsoft\MediaPlayer\ShimInclusionList\plugin-container.exe"
+  ${CreateRegKey} "$TmpVal" "$0" 0
+
+  ${If} $TmpVal == "HKLM"
+    ; Set the permitted LSP Categories
+    ${SetAppLSPCategories} ${LSP_CATEGORIES}
+  ${EndIf}
+
+!ifdef MOZ_LAUNCHER_PROCESS
+  ; Launcher telemetry is opt-out, so we always enable it by default in new
+  ; installs. We always use HKCU because this value is a reflection of a pref
+  ; from the user profile. While this is not a perfect abstraction (given the
+  ; possibility of multiple Firefox profiles owned by the same Windows user), it
+  ; is more accurate than a machine-wide setting, and should be accurate in the
+  ; majority of cases.
+  WriteRegDWORD HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Telemetry" 1
+!endif
+
+  ${If} ${AtLeastWin10}
+    ${WriteToastNotificationRegistration} $TmpVal
+  ${EndIf}
+
+  ; Create shortcuts
+  ${LogHeader} "Adding Shortcuts"
+
+  ; Remove the start menu shortcuts and directory if the SMPROGRAMS section
+  ; exists in the shortcuts_log.ini and the SMPROGRAMS. The installer's shortcut
+  ; creation code will create the shortcut in the root of the Start Menu
+  ; Programs directory.
+  ${RemoveStartMenuDir}
+
+  ; Always add the application's shortcuts to the shortcuts log ini file. The
+  ; DeleteShortcuts macro will do the right thing on uninstall if the
+  ; shortcuts don't exist.
+  ${LogStartMenuShortcut} "${BrandShortName}.lnk"
+  ${LogQuickLaunchShortcut} "${BrandShortName}.lnk"
+  ${LogDesktopShortcut} "${BrandShortName}.lnk"
+
+  ; Best effort to update the Win7 taskbar and start menu shortcut app model
+  ; id's. The possible contexts are current user / system and the user that
+  ; elevated the installer.
+  Call FixShortcutAppModelIDs
+  ; If the current context is all also perform Win7 taskbar and start menu link
+  ; maintenance for the current user context.
+  ${If} $TmpVal == "HKLM"
+    SetShellVarContext current  ; Set SHCTX to HKCU
+    Call FixShortcutAppModelIDs
+    SetShellVarContext all  ; Set SHCTX to HKLM
+  ${EndIf}
+
+  ; If running elevated also perform Win7 taskbar and start menu link
+  ; maintenance for the unelevated user context in case that is different than
+  ; the current user.
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $0
+  ${Unless} ${Errors}
+    GetFunctionAddress $0 FixShortcutAppModelIDs
+    UAC::ExecCodeSegment $0
+  ${EndUnless}
+
+  ; UAC only allows elevating to an Admin account so there is no need to add
+  ; the Start Menu or Desktop shortcuts from the original unelevated process
+  ; since this will either add it for the user if unelevated or All Users if
+  ; elevated.
+  ${If} $AddStartMenuSC == 1
+    ; See if there's an existing shortcut for this installation using the old
+    ; name that we should just rename, instead of creating a new shortcut.
+    ; We could do this renaming even when $AddStartMenuSC is false; the idea
+    ; behind not doing that is to interpret "false" as "don't do anything
+    ; involving start menu shortcuts at all." We could also try to do this for
+    ; both shell contexts, but that won't typically accomplish anything.
+    ${If} ${FileExists} "$SMPROGRAMS\${BrandFullName}.lnk"
+      ShellLink::GetShortCutTarget "$SMPROGRAMS\${BrandFullName}.lnk"
+      Pop $0
+      ${GetLongPath} "$0" $0
+      ${If} $0 == "$INSTDIR\${FileMainEXE}"
+      ${AndIfNot} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+        Rename "$SMPROGRAMS\${BrandFullName}.lnk" \
+               "$SMPROGRAMS\${BrandShortName}.lnk"
+        ${LogMsg} "Renamed existing shortcut to $SMPROGRAMS\${BrandShortName}.lnk"
+      ${EndIf}
+    ${Else}
+      CreateShortCut "$SMPROGRAMS\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+      ${If} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+        ShellLink::SetShortCutWorkingDirectory "$SMPROGRAMS\${BrandShortName}.lnk" \
+                                               "$INSTDIR"
+        ${If} "$AppUserModelID" != ""
+          ApplicationID::Set "$SMPROGRAMS\${BrandShortName}.lnk" \
+                             "$AppUserModelID" "true"
+        ${EndIf}
+        ${LogMsg} "Added Shortcut: $SMPROGRAMS\${BrandShortName}.lnk"
+      ${Else}
+        ${LogMsg} "** ERROR Adding Shortcut: $SMPROGRAMS\${BrandShortName}.lnk"
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  ; This is always added if it doesn't already exist to ensure that Windows'
+  ; native "Pin to Taskbar" functionality can find an appropriate shortcut.
+  ; See https://bugzilla.mozilla.org/show_bug.cgi?id=1762994 for additional
+  ; background.
+  ${If} $AddPrivateBrowsingSC == 1
+    ${AddPrivateBrowsingShortcut}
+  ${EndIf}
+
+  ; Update lastwritetime of the Start Menu shortcut to clear the tile cache.
+  ; Do this for both shell contexts in case the user has shortcuts in multiple
+  ; locations, then restore the previous context at the end.
+  ${If} ${AtLeastWin8}
+    SetShellVarContext all
+    ${TouchStartMenuShortcut}
+    SetShellVarContext current
+    ${TouchStartMenuShortcut}
+    ${If} $TmpVal == "HKLM"
+      SetShellVarContext all
+    ${ElseIf} $TmpVal == "HKCU"
+      SetShellVarContext current
+    ${EndIf}
+  ${EndIf}
+
+  ${If} $AddDesktopSC == 1
+    ${If} ${FileExists} "$DESKTOP\${BrandFullName}.lnk"
+      ShellLink::GetShortCutTarget "$DESKTOP\${BrandFullName}.lnk"
+      Pop $0
+      ${GetLongPath} "$0" $0
+      ${If} $0 == "$INSTDIR\${FileMainEXE}"
+      ${AndIfNot} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+        Rename "$DESKTOP\${BrandFullName}.lnk" "$DESKTOP\${BrandShortName}.lnk"
+        ${LogMsg} "Renamed existing shortcut to $DESKTOP\${BrandShortName}.lnk"
+      ${EndIf}
+    ${Else}
+      CreateShortCut "$DESKTOP\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+      ${If} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+        ShellLink::SetShortCutWorkingDirectory "$DESKTOP\${BrandShortName}.lnk" \
+                                               "$INSTDIR"
+        ${If} "$AppUserModelID" != ""
+          ApplicationID::Set "$DESKTOP\${BrandShortName}.lnk" \
+                             "$AppUserModelID" "true"
+        ${EndIf}
+        ${LogMsg} "Added Shortcut: $DESKTOP\${BrandShortName}.lnk"
+      ${Else}
+        ${LogMsg} "** ERROR Adding Shortcut: $DESKTOP\${BrandShortName}.lnk"
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  ; If elevated the Quick Launch shortcut must be added from the unelevated
+  ; original process.
+  ${If} $AddQuickLaunchSC == 1
+    ${Unless} ${AtLeastWin7}
+      ClearErrors
+      ${GetParameters} $0
+      ${GetOptions} "$0" "/UAC:" $0
+      ${If} ${Errors}
+        Call AddQuickLaunchShortcut
+        ${LogMsg} "Added Shortcut: $QUICKLAUNCH\${BrandShortName}.lnk"
+      ${Else}
+        ; It is not possible to add a log entry from the unelevated process so
+        ; add the log entry without the path since there is no simple way to
+        ; know the correct full path.
+        ${LogMsg} "Added Quick Launch Shortcut: ${BrandShortName}.lnk"
+        GetFunctionAddress $0 AddQuickLaunchShortcut
+        UAC::ExecCodeSegment $0
+      ${EndIf}
+    ${EndUnless}
+  ${EndIf}
+
+!ifdef MOZ_OPTIONAL_EXTENSIONS
+  ${If} ${FileExists} "$INSTDIR\distribution\optional-extensions"
+    ${LogHeader} "Installing optional extensions if requested"
+
+    ${If} $InstallOptionalExtensions != "0"
+    ${AndIf} ${FileExists} "$INSTDIR\distribution\setup.ini"
+      ${Unless} ${FileExists} "$INSTDIR\distribution\extensions"
+        CreateDirectory "$INSTDIR\distribution\extensions"
+      ${EndUnless}
+
+      StrCpy $0 0
+      ${Do}
+        ClearErrors
+        ReadINIStr $1 "$INSTDIR\distribution\setup.ini" "OptionalExtensions" \
+                                                        "extension.$0.id"
+        ${If} ${Errors}
+          ${ExitDo}
+        ${EndIf}
+
+        ReadINIStr $2 "$INSTDIR\distribution\setup.ini" "OptionalExtensions" \
+                                                        "extension.$0.checked"
+        ${If} $2 != ${BST_UNCHECKED}
+          ${LogMsg} "Installing optional extension: $1"
+          CopyFiles /SILENT "$INSTDIR\distribution\optional-extensions\$1.xpi" \
+                            "$INSTDIR\distribution\extensions"
+        ${EndIf}
+
+        IntOp $0 $0 + 1
+      ${Loop}
+    ${EndIf}
+
+    ${LogMsg} "Removing the optional-extensions directory"
+    RMDir /r /REBOOTOK "$INSTDIR\distribution\optional-extensions"
+  ${EndIf}
+!endif
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+  ${If} $TmpVal == "HKLM"
+    ; Add the registry keys for allowed certificates.
+    ${AddMaintCertKeys}
+  ${EndIf}
+!endif
+
+!ifdef MOZ_DEFAULT_BROWSER_AGENT
+  ${If} $RegisterDefaultAgent != "0"
+    ExecWait '"$INSTDIR\default-browser-agent.exe" register-task $AppUserModelID' $0
+
+    ${If} $0 == 0x80070534 ; HRESULT_FROM_WIN32(ERROR_NONE_MAPPED)
+      ; The agent sometimes returns this error from trying to register the task
+      ; when we're running out of the MSI. The error is cryptic, but I believe
+      ; the cause is the fact that the MSI service runs us as SYSTEM, so
+      ; proxying the invocation through the shell gets the task registered as
+      ; the interactive user, which is what we want.
+      ; We use ExecInExplorer only as a fallback instead of always, because it
+      ; doesn't work in all environments; see bug 1602726.
+      ExecInExplorer::Exec "$INSTDIR\default-browser-agent.exe" \
+                           /cmdargs "register-task $AppUserModelID"
+      ; We don't need Exec's return value, but don't leave it on the stack.
+      Pop $0
+    ${EndIf}
+
+    ${If} $RegisterDefaultAgent == ""
+      ; If the variable was unset, force it to a good value.
+      StrCpy $RegisterDefaultAgent 1
+    ${EndIf}
+  ${EndIf}
+  ; Remember whether we were told to skip registering the agent, so that updates
+  ; won't try to create a registration when they don't find an existing one.
+  WriteRegDWORD HKCU "Software\Mozilla\${AppName}\Installer\$AppUserModelID" \
+                     "DidRegisterDefaultBrowserAgent" $RegisterDefaultAgent
+!endif
+SectionEnd
+
+; Cleanup operations to perform at the end of the installation.
+Section "-InstallEndCleanup"
+  SetDetailsPrint both
+  DetailPrint "$(STATUS_CLEANUP)"
+  SetDetailsPrint none
+
+  ; Maybe copy the post-signing data?
+  StrCpy $PostSigningData ""
+  ${GetParameters} $0
+  ClearErrors
+  ; We don't get post-signing data from the MSI.
+  ${GetOptions} $0 "/LaunchedFromMSI" $1
+  ${If} ${Errors}
+    ; The stub will handle copying the data if it ran us.
+    ClearErrors
+    ${GetOptions} $0 "/LaunchedFromStub" $1
+    ${If} ${Errors}
+      ; We're being run standalone, copy the data.
+      ${CopyPostSigningData}
+      Pop $PostSigningData
+    ${EndIf}
+  ${EndIf}
+
+  ${Unless} ${Silent}
+    ClearErrors
+    ${MUI_INSTALLOPTIONS_READ} $0 "summary.ini" "Field 4" "State"
+    ${If} "$0" == "1"
+      StrCpy $SetAsDefault true
+      ; For data migration in the app, we want to know what the default browser
+      ; value was before we changed it. To do so, we read it here and store it
+      ; in our own registry key.
+      StrCpy $0 ""
+      AppAssocReg::QueryCurrentDefault "http" "protocol" "effective"
+      Pop $1
+      ; If the method hasn't failed, $1 will contain the progid. Check:
+      ${If} "$1" != "method failed"
+      ${AndIf} "$1" != "method not available"
+        ; Read the actual command from the progid
+        ReadRegStr $0 HKCR "$1\shell\open\command" ""
+      ${EndIf}
+      ; If using the App Association Registry didn't happen or failed, fall back
+      ; to the effective http default:
+      ${If} "$0" == ""
+        ReadRegStr $0 HKCR "http\shell\open\command" ""
+      ${EndIf}
+      ; If we have something other than empty string now, write the value.
+      ${If} "$0" != ""
+        ClearErrors
+        WriteRegStr HKCU "Software\Mozilla\Firefox" "OldDefaultBrowserCommand" "$0"
+      ${EndIf}
+
+      ${LogHeader} "Setting as the default browser"
+      ; AddTaskbarSC is needed by MigrateTaskBarShortcut, which is called by
+      ; SetAsDefaultAppUserHKCU. If this is called via ExecCodeSegment,
+      ; MigrateTaskBarShortcut will not see the value of AddTaskbarSC, so we
+      ; send it via a register instead.
+      StrCpy $R0 $AddTaskbarSC
+      ClearErrors
+      ${GetParameters} $0
+      ${GetOptions} "$0" "/UAC:" $0
+      ${If} ${Errors}
+        Call SetAsDefaultAppUserHKCU
+      ${Else}
+        GetFunctionAddress $0 SetAsDefaultAppUserHKCU
+        UAC::ExecCodeSegment $0
+      ${EndIf}
+    ${ElseIfNot} ${Errors}
+      StrCpy $SetAsDefault false
+      ${LogHeader} "Writing default-browser opt-out"
+      ClearErrors
+      WriteRegStr HKCU "Software\Mozilla\Firefox" "DefaultBrowserOptOut" "True"
+      ${If} ${Errors}
+        ${LogMsg} "Error writing default-browser opt-out"
+      ${EndIf}
+    ${EndIf}
+  ${EndUnless}
+
+  ; Adds a pinned Task Bar shortcut (see MigrateTaskBarShortcut for details).
+  ${MigrateTaskBarShortcut} "$AddTaskbarSC"
+
+  ; Add the Firewall entries during install
+  Call AddFirewallEntries
+
+  ; Refresh desktop icons
+  ${RefreshShellIcons}
+
+  ${InstallEndCleanupCommon}
+
+  ${If} $PreventRebootRequired == "true"
+    SetRebootFlag false
+  ${EndIf}
+
+  ${If} ${RebootFlag}
+    ; Admin is required to delete files on reboot so only add the moz-delete if
+    ; the user is an admin. After calling UAC::IsAdmin $0 will equal 1 if the
+    ; user is an admin.
+    UAC::IsAdmin
+    ${If} "$0" == "1"
+      ; When a reboot is required give RefreshShellIcons time to finish the
+      ; refreshing the icons so the OS doesn't display the icons from helper.exe
+      Sleep 10000
+      ${LogHeader} "Reboot Required To Finish Installation"
+      ; ${FileMainEXE}.moz-upgrade should never exist but just in case...
+      ${Unless} ${FileExists} "$INSTDIR\${FileMainEXE}.moz-upgrade"
+        Rename "$INSTDIR\${FileMainEXE}" "$INSTDIR\${FileMainEXE}.moz-upgrade"
+      ${EndUnless}
+
+      ${If} ${FileExists} "$INSTDIR\${FileMainEXE}"
+        ClearErrors
+        Rename "$INSTDIR\${FileMainEXE}" "$INSTDIR\${FileMainEXE}.moz-delete"
+        ${Unless} ${Errors}
+          Delete /REBOOTOK "$INSTDIR\${FileMainEXE}.moz-delete"
+        ${EndUnless}
+      ${EndIf}
+
+      ${Unless} ${FileExists} "$INSTDIR\${FileMainEXE}"
+        CopyFiles /SILENT "$INSTDIR\uninstall\helper.exe" "$INSTDIR"
+        FileOpen $0 "$INSTDIR\${FileMainEXE}" w
+        FileWrite $0 "Will be deleted on restart"
+        Rename /REBOOTOK "$INSTDIR\${FileMainEXE}.moz-upgrade" "$INSTDIR\${FileMainEXE}"
+        FileClose $0
+        Delete "$INSTDIR\${FileMainEXE}"
+        Rename "$INSTDIR\helper.exe" "$INSTDIR\${FileMainEXE}"
+      ${EndUnless}
+    ${EndIf}
+  ${EndIf}
+
+  Call WriteInstallationTelemetryData
+
+  StrCpy $InstallResult "success"
+
+  ; When we're using the GUI, .onGUIEnd sends the ping, but of course that isn't
+  ; invoked when we're running silently.
+  ${If} ${Silent}
+    Call SendPing
+  ${EndIf}
+SectionEnd
+
+################################################################################
+# Install Abort Survey Functions
+
+Function CustomAbort
+  ${If} "${AB_CD}" == "en-US"
+  ${AndIf} "$PageName" != ""
+  ${AndIf} ${FileExists} "$EXEDIR\core\distribution\distribution.ini"
+    ReadINIStr $0 "$EXEDIR\core\distribution\distribution.ini" "Global" "about"
+    ClearErrors
+    ${WordFind} "$0" "Funnelcake" "E#" $1
+    ${Unless} ${Errors}
+      ; Yes = fill out the survey and exit, No = don't fill out survey and exit,
+      ; Cancel = don't exit.
+      MessageBox MB_YESNO|MB_ICONEXCLAMATION \
+                 "Would you like to tell us why you are canceling this installation?" \
+                 IDYes +1 IDNO CustomAbort_finish
+      ${If} "$PageName" == "Welcome"
+          GetFunctionAddress $0 AbortSurveyWelcome
+      ${ElseIf} "$PageName" == "Options"
+          GetFunctionAddress $0 AbortSurveyOptions
+      ${ElseIf} "$PageName" == "Directory"
+          GetFunctionAddress $0 AbortSurveyDirectory
+      ${ElseIf} "$PageName" == "Shortcuts"
+          GetFunctionAddress $0 AbortSurveyShortcuts
+      ${ElseIf} "$PageName" == "Summary"
+          GetFunctionAddress $0 AbortSurveySummary
+      ${EndIf}
+      ClearErrors
+      ${GetParameters} $1
+      ${GetOptions} "$1" "/UAC:" $2
+      ${If} ${Errors}
+        Call $0
+      ${Else}
+        UAC::ExecCodeSegment $0
+      ${EndIf}
+
+      CustomAbort_finish:
+      Return
+    ${EndUnless}
+  ${EndIf}
+
+  MessageBox MB_YESNO|MB_ICONEXCLAMATION "$(MOZ_MUI_TEXT_ABORTWARNING)" \
+             IDYES +1 IDNO +2
+  Return
+  Abort
+FunctionEnd
+
+Function AbortSurveyWelcome
+  ExecShell "open" "${AbortSurveyURL}step1"
+FunctionEnd
+
+Function AbortSurveyOptions
+  ExecShell "open" "${AbortSurveyURL}step2"
+FunctionEnd
+
+Function AbortSurveyDirectory
+  ExecShell "open" "${AbortSurveyURL}step3"
+FunctionEnd
+
+Function AbortSurveyShortcuts
+  ExecShell "open" "${AbortSurveyURL}step4"
+FunctionEnd
+
+Function AbortSurveySummary
+  ExecShell "open" "${AbortSurveyURL}step5"
+FunctionEnd
+
+################################################################################
+# Helper Functions
+
+Function AddQuickLaunchShortcut
+  CreateShortCut "$QUICKLAUNCH\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+  ${If} ${FileExists} "$QUICKLAUNCH\${BrandShortName}.lnk"
+    ShellLink::SetShortCutWorkingDirectory "$QUICKLAUNCH\${BrandShortName}.lnk" \
+                                           "$INSTDIR"
+  ${EndIf}
+FunctionEnd
+
+Function CheckExistingInstall
+  ; If there is a pending file copy from a previous upgrade don't allow
+  ; installing until after the system has rebooted.
+  IfFileExists "$INSTDIR\${FileMainEXE}.moz-upgrade" +1 +4
+  MessageBox MB_YESNO|MB_ICONEXCLAMATION "$(WARN_RESTART_REQUIRED_UPGRADE)" IDNO +2
+  Reboot
+  Quit
+
+  ; If there is a pending file deletion from a previous uninstall don't allow
+  ; installing until after the system has rebooted.
+  IfFileExists "$INSTDIR\${FileMainEXE}.moz-delete" +1 +4
+  MessageBox MB_YESNO|MB_ICONEXCLAMATION "$(WARN_RESTART_REQUIRED_UNINSTALL)" IDNO +2
+  Reboot
+  Quit
+
+  ${If} ${FileExists} "$INSTDIR\${FileMainEXE}"
+    ; Disable the next, cancel, and back buttons
+    GetDlgItem $0 $HWNDPARENT 1 ; Next button
+    EnableWindow $0 0
+    GetDlgItem $0 $HWNDPARENT 2 ; Cancel button
+    EnableWindow $0 0
+    GetDlgItem $0 $HWNDPARENT 3 ; Back button
+    EnableWindow $0 0
+
+    Banner::show /NOUNLOAD "$(BANNER_CHECK_EXISTING)"
+
+    ${If} "$TmpVal" == "FoundAppWindow"
+      Sleep 5000
+    ${EndIf}
+
+    ${PushFilesToCheck}
+
+    ; Store the return value in $TmpVal so it is less likely to be accidentally
+    ; overwritten elsewhere.
+    ${CheckForFilesInUse} $TmpVal
+
+    Banner::destroy
+
+    ; Enable the next, cancel, and back buttons
+    GetDlgItem $0 $HWNDPARENT 1 ; Next button
+    EnableWindow $0 1
+    GetDlgItem $0 $HWNDPARENT 2 ; Cancel button
+    EnableWindow $0 1
+    GetDlgItem $0 $HWNDPARENT 3 ; Back button
+    EnableWindow $0 1
+
+    ; If there are files in use $TmpVal will be "true"
+    ${If} "$TmpVal" == "true"
+      ; If it finds a window of the right class, then ManualCloseAppPrompt will
+      ; abort leaving the value of $TmpVal set to "FoundAppWindow".
+      StrCpy $TmpVal "FoundAppWindow"
+      ${ManualCloseAppPrompt} "${MainWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_INSTALL)"
+      ${ManualCloseAppPrompt} "${DialogWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_INSTALL)"
+      StrCpy $TmpVal "true"
+    ${EndIf}
+  ${EndIf}
+FunctionEnd
+
+Function LaunchApp
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $1
+  ${If} ${Errors}
+    ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -first-startup"
+  ${Else}
+    GetFunctionAddress $0 LaunchAppFromElevatedProcess
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+
+  StrCpy $LaunchedNewApp true
+FunctionEnd
+
+Function LaunchAppFromElevatedProcess
+  ; Set our current working directory to the application's install directory
+  ; otherwise the 7-Zip temp directory will be in use and won't be deleted.
+  SetOutPath "$INSTDIR"
+  ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -first-startup"
+FunctionEnd
+
+Function SendPing
+  ${GetParameters} $0
+  ${GetOptions} $0 "/LaunchedFromStub" $0
+  ${IfNot} ${Errors}
+    Return
+  ${EndIf}
+
+  ; Create a GUID to use as the unique document ID.
+  System::Call "rpcrt4::UuidCreate(g . r0)i"
+  ; StringFromGUID2 (which is what System::Call uses internally to stringify
+  ; GUIDs) includes braces in its output, and we don't want those.
+  StrCpy $0 $0 -1 1
+
+  ; Configure the HTTP request for the ping
+  nsJSON::Set /tree ping /value "{}"
+  nsJSON::Set /tree ping "Url" /value \
+    '"${TELEMETRY_BASE_URL}/${TELEMETRY_NAMESPACE}/${TELEMETRY_INSTALL_PING_DOCTYPE}/${TELEMETRY_INSTALL_PING_VERSION}/$0"'
+  nsJSON::Set /tree ping "Verb" /value '"POST"'
+  nsJSON::Set /tree ping "DataType" /value '"JSON"'
+  nsJSON::Set /tree ping "AccessType" /value '"PreConfig"'
+
+  ; Fill in the ping payload
+  nsJSON::Set /tree ping "Data" /value "{}"
+  nsJSON::Set /tree ping "Data" "installer_type" /value '"full"'
+  nsJSON::Set /tree ping "Data" "installer_version" /value '"${AppVersion}"'
+  nsJSON::Set /tree ping "Data" "build_channel" /value '"${Channel}"'
+  nsJSON::Set /tree ping "Data" "update_channel" /value '"${UpdateChannel}"'
+  nsJSON::Set /tree ping "Data" "locale" /value '"${AB_CD}"'
+
+  ReadINIStr $0 "$INSTDIR\application.ini" "App" "Version"
+  nsJSON::Set /tree ping "Data" "version" /value '"$0"'
+  ReadINIStr $0 "$INSTDIR\application.ini" "App" "BuildID"
+  nsJSON::Set /tree ping "Data" "build_id" /value '"$0"'
+
+  ${GetParameters} $0
+  ${GetOptions} $0 "/LaunchedFromMSI" $0
+  ${IfNot} ${Errors}
+    nsJSON::Set /tree ping "Data" "from_msi" /value true
+  ${EndIf}
+
+  !ifdef HAVE_64BIT_BUILD
+    nsJSON::Set /tree ping "Data" "64bit_build" /value true
+  !else
+    nsJSON::Set /tree ping "Data" "64bit_build" /value false
+  !endif
+
+  ${If} ${RunningX64}
+    nsJSON::Set /tree ping "Data" "64bit_os" /value true
+  ${Else}
+    nsJSON::Set /tree ping "Data" "64bit_os" /value false
+  ${EndIf}
+
+  ; Though these values are sometimes incorrect due to bug 444664 it happens
+  ; so rarely it isn't worth working around it by reading the registry values.
+  ${WinVerGetMajor} $0
+  ${WinVerGetMinor} $1
+  ${WinVerGetBuild} $2
+  nsJSON::Set /tree ping "Data" "os_version" /value '"$0.$1.$2"'
+  ${If} ${IsServerOS}
+    nsJSON::Set /tree ping "Data" "server_os" /value true
+  ${Else}
+    nsJSON::Set /tree ping "Data" "server_os" /value false
+  ${EndIf}
+
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" \
+                   "Write Test"
+  ${If} ${Errors}
+    nsJSON::Set /tree ping "Data" "admin_user" /value false
+  ${Else}
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    nsJSON::Set /tree ping "Data" "admin_user" /value true
+  ${EndIf}
+
+  ${If} $DefaultInstDir == $INSTDIR
+    nsJSON::Set /tree ping "Data" "default_path" /value true
+  ${Else}
+    nsJSON::Set /tree ping "Data" "default_path" /value false
+  ${EndIf}
+
+  nsJSON::Set /tree ping "Data" "set_default" /value "$SetAsDefault"
+
+  nsJSON::Set /tree ping "Data" "new_default" /value false
+  nsJSON::Set /tree ping "Data" "old_default" /value false
+
+  AppAssocReg::QueryCurrentDefault "http" "protocol" "effective"
+  Pop $0
+  ReadRegStr $0 HKCR "$0\shell\open\command" ""
+  ${If} $0 != ""
+    ${GetPathFromString} "$0" $0
+    ${GetParent} "$0" $1
+    ${GetLongPath} "$1" $1
+    ${If} $1 == $INSTDIR
+      nsJSON::Set /tree ping "Data" "new_default" /value true
+    ${Else}
+      StrCpy $0 "$0" "" -11 # 11 == length of "firefox.exe"
+      ${If} "$0" == "${FileMainEXE}"
+        nsJSON::Set /tree ping "Data" "old_default" /value true
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  nsJSON::Set /tree ping "Data" "had_old_install" /value "$HadOldInstall"
+
+  ${If} ${Silent}
+    ; In silent mode, only the install phase is executed, and the GUI events
+    ; that initialize most of the phase times are never called; only
+    ; $InstallPhaseStart and $FinishPhaseStart have usable values.
+    ${GetSecondsElapsed} $InstallPhaseStart $FinishPhaseStart $0
+
+    nsJSON::Set /tree ping "Data" "intro_time" /value 0
+    nsJSON::Set /tree ping "Data" "options_time" /value 0
+    nsJSON::Set /tree ping "Data" "install_time" /value "$0"
+    nsJSON::Set /tree ping "Data" "finish_time" /value 0
+  ${Else}
+    ; In GUI mode, all we can be certain of is that the intro phase has started;
+    ; the user could have canceled at any time and phases after that won't
+    ; have run at all. So we have to be prepared for anything after
+    ; $IntroPhaseStart to be uninitialized. For anything that isn't filled in
+    ; yet we'll use the current tick count. That means that any phases that
+    ; weren't entered at all will get 0 for their times because the start and
+    ; end tick counts will be the same.
+    System::Call "kernel32::GetTickCount()l .s"
+    Pop $0
+
+    ${If} $OptionsPhaseStart == 0
+      StrCpy $OptionsPhaseStart $0
+    ${EndIf}
+    ${GetSecondsElapsed} $IntroPhaseStart $OptionsPhaseStart $1
+    nsJSON::Set /tree ping "Data" "intro_time" /value "$1"
+
+    ${If} $InstallPhaseStart == 0
+      StrCpy $InstallPhaseStart $0
+    ${EndIf}
+    ${GetSecondsElapsed} $OptionsPhaseStart $InstallPhaseStart $1
+    nsJSON::Set /tree ping "Data" "options_time" /value "$1"
+
+    ${If} $FinishPhaseStart == 0
+      StrCpy $FinishPhaseStart $0
+    ${EndIf}
+    ${GetSecondsElapsed} $InstallPhaseStart $FinishPhaseStart $1
+    nsJSON::Set /tree ping "Data" "install_time" /value "$1"
+
+    ${If} $FinishPhaseEnd == 0
+      StrCpy $FinishPhaseEnd $0
+    ${EndIf}
+    ${GetSecondsElapsed} $FinishPhaseStart $FinishPhaseEnd $1
+    nsJSON::Set /tree ping "Data" "finish_time" /value "$1"
+  ${EndIf}
+
+  ; $PostSigningData should only be empty if we didn't try to copy the
+  ; postSigningData file at all. If we did try and the file was missing
+  ; or empty, this will be "0", and for consistency with the stub we will
+  ; still submit it.
+  ${If} $PostSigningData != ""
+    nsJSON::Quote /always $PostSigningData
+    Pop $0
+    nsJSON::Set /tree ping "Data" "attribution" /value $0
+  ${EndIf}
+
+  nsJSON::Set /tree ping "Data" "new_launched" /value "$LaunchedNewApp"
+
+  nsJSON::Set /tree ping "Data" "succeeded" /value false
+  ${If} $InstallResult == "cancel"
+    nsJSON::Set /tree ping "Data" "user_cancelled" /value true
+  ${ElseIf} $InstallResult == "success"
+    nsJSON::Set /tree ping "Data" "succeeded" /value true
+  ${EndIf}
+
+  ${If} ${Silent}
+    nsJSON::Set /tree ping "Data" "silent" /value true
+  ${Else}
+    nsJSON::Set /tree ping "Data" "silent" /value false
+  ${EndIf}
+
+  ; Send the ping request. This call will block until a response is received,
+  ; but we shouldn't have any windows still open, so we won't jank anything.
+  nsJSON::Set /http ping
+FunctionEnd
+
+; Record data about this installation for use in in-app Telemetry pings.
+;
+; This should be run only after a successful installation, as it will
+; pull data from $INSTDIR\application.ini.
+;
+; Unlike the install ping or post-signing data, which is only sent/written by
+; the full installer when it is not run by the stub (since the stub has more
+; information), this will always be recorded by the full installer, to reduce
+; duplication and ensure consistency.
+;
+; Note: Should be assumed to clobber all $0, $1, etc registers.
+!define JSONSet `nsJSON::Set /tree installation_data`
+Function WriteInstallationTelemetryData
+  ${JSONSet} /value "{}"
+
+  ReadINIStr $0 "$INSTDIR\application.ini" "App" "Version"
+  ${JSONSet} "version" /value '"$0"'
+  ReadINIStr $0 "$INSTDIR\application.ini" "App" "BuildID"
+  ${JSONSet} "build_id" /value '"$0"'
+
+  ; Check for write access to HKLM, if successful then report this user
+  ; as an (elevated) admin.
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" \
+                   "Write Test"
+  ${If} ${Errors}
+    StrCpy $1 "false"
+  ${Else}
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    StrCpy $1 "true"
+  ${EndIf}
+  ${JSONSet} "admin_user" /value $1
+
+  ; Note: This is not the same as $HadOldInstall, which looks for any install
+  ; in the registry. $InstallExisted is true only if this run of the installer
+  ; is replacing an existing main EXE.
+  ${If} $InstallExisted != ""
+    ${JSONSet} "install_existed" /value $InstallExisted
+  ${EndIf}
+
+  ; Check for top-level profile directory
+  ; Note: This is the same check used to set $ExistingProfile in stub.nsi
+  ${GetLocalAppDataFolder} $0
+  ${If} ${FileExists} "$0\Mozilla\Firefox"
+    StrCpy $1 "true"
+  ${Else}
+    StrCpy $1 "false"
+  ${EndIf}
+  ${JSONSet} "profdir_existed" /value $1
+
+  ${GetParameters} $0
+  ${GetOptions} $0 "/LaunchedFromStub" $1
+  ${IfNot} ${Errors}
+    ${JSONSet} "installer_type" /value '"stub"'
+  ${Else}
+    ; Not launched from stub
+    ${JSONSet} "installer_type" /value '"full"'
+
+    ; Include additional info relevant when the full installer is run directly
+
+    ${If} ${Silent}
+      StrCpy $1 "true"
+    ${Else}
+      StrCpy $1 "false"
+    ${EndIf}
+    ${JSONSet} "silent" /value $1
+
+    ${GetOptions} $0 "/LaunchedFromMSI" $1
+    ${IfNot} ${Errors}
+      StrCpy $1 "true"
+    ${Else}
+      StrCpy $1 "false"
+    ${EndIf}
+    ${JSONSet} "from_msi" /value $1
+
+    ; NOTE: for non-admin basic installs, or reinstalls, $DefaultInstDir may not
+    ; reflect the actual default path.
+    ${If} $DefaultInstDir == $INSTDIR
+      StrCpy $1 "true"
+    ${Else}
+      StrCpy $1 "false"
+    ${EndIf}
+    ${JSONSet} "default_path" /value $1
+  ${EndIf}
+
+  ; Timestamp, to allow app to detect a new install.
+  ; As a 64-bit integer isn't valid JSON, quote as a string.
+  System::Call "kernel32::GetSystemTimeAsFileTime(*l.r0)"
+  ${JSONSet} "install_timestamp" /value '"$0"'
+
+  nsJSON::Serialize /tree installation_data /file /unicode "$INSTDIR\installation_telemetry.json"
+FunctionEnd
+!undef JSONSet
+
+; Set $InstallExisted (if not yet set) by checking for the EXE.
+; Should be called before trying to delete the EXE when install begins.
+Function CheckIfInstallExisted
+  ${If} $InstallExisted == ""
+    ${If} ${FileExists} "$INSTDIR\${FileMainEXE}"
+      StrCpy $InstallExisted true
+    ${Else}
+      StrCpy $InstallExisted false
+    ${EndIf}
+  ${EndIf}
+FunctionEnd
+
+################################################################################
+# Language
+
+!insertmacro MOZ_MUI_LANGUAGE 'baseLocale'
+!verbose push
+!verbose 3
+!include "overrideLocale.nsh"
+!include "customLocale.nsh"
+!ifdef MOZ_OPTIONAL_EXTENSIONS
+!include "extensionsLocale.nsh"
+!endif
+!verbose pop
+
+; Set this after the locale files to override it if it is in the locale
+; using " " for BrandingText will hide the "Nullsoft Install System..." branding
+BrandingText " "
+
+################################################################################
+# Page pre, show, and leave functions
+
+Function preWelcome
+  StrCpy $PageName "Welcome"
+  ${If} ${FileExists} "$EXEDIR\core\distribution\modern-wizard.bmp"
+    Delete "$PLUGINSDIR\modern-wizard.bmp"
+    CopyFiles /SILENT "$EXEDIR\core\distribution\modern-wizard.bmp" "$PLUGINSDIR\modern-wizard.bmp"
+  ${EndIf}
+
+  ; We don't want the header bitmap showing on the welcome page.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_HIDE}
+
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $IntroPhaseStart
+FunctionEnd
+
+Function showWelcome
+  ; The welcome and finish pages don't get the correct colors for their labels
+  ; like the other pages do, presumably because they're built by filling in an
+  ; InstallOptions .ini file instead of from a dialog resource like the others.
+  ; Field 2 is the header and Field 3 is the body text.
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 2" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 3" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ; We need to overwrite the sidebar image so that we get it drawn with proper
+  ; scaling if the display is scaled at anything above 100%.
+  ${ChangeMUISidebarImage} "$PLUGINSDIR\modern-wizard.bmp"
+FunctionEnd
+
+Function leaveWelcome
+  ; Bring back the header bitmap for the next pages.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_SHOW}
+FunctionEnd
+
+Function preOptions
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $OptionsPhaseStart
+
+  ; The header and subheader on the wizard pages don't get the correct text
+  ; color by default for some reason, even though the other controls do.
+  GetDlgItem $0 $HWNDPARENT 1037
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+  GetDlgItem $0 $HWNDPARENT 1038
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  StrCpy $PageName "Options"
+  ${If} ${FileExists} "$EXEDIR\core\distribution\modern-header.bmp"
+    Delete "$PLUGINSDIR\modern-header.bmp"
+    CopyFiles /SILENT "$EXEDIR\core\distribution\modern-header.bmp" "$PLUGINSDIR\modern-header.bmp"
+  ${EndIf}
+  ${ChangeMUIHeaderImage} "$PLUGINSDIR\modern-header.bmp"
+  !insertmacro MUI_HEADER_TEXT "$(OPTIONS_PAGE_TITLE)" "$(OPTIONS_PAGE_SUBTITLE)"
+  !insertmacro MUI_INSTALLOPTIONS_DISPLAY "options.ini"
+FunctionEnd
+
+Function leaveOptions
+  ${MUI_INSTALLOPTIONS_READ} $0 "options.ini" "Settings" "State"
+  ${If} $0 != 0
+    Abort
+  ${EndIf}
+  ${MUI_INSTALLOPTIONS_READ} $R0 "options.ini" "Field 2" "State"
+  StrCmp $R0 "1" +1 +2
+  StrCpy $InstallType ${INSTALLTYPE_BASIC}
+  ${MUI_INSTALLOPTIONS_READ} $R0 "options.ini" "Field 3" "State"
+  StrCmp $R0 "1" +1 +2
+  StrCpy $InstallType ${INSTALLTYPE_CUSTOM}
+
+  ${LeaveOptionsCommon}
+
+  ${If} $InstallType == ${INSTALLTYPE_BASIC}
+    Call CheckExistingInstall
+  ${EndIf}
+FunctionEnd
+
+Function preDirectory
+  StrCpy $PageName "Directory"
+  ${PreDirectoryCommon}
+
+  StrCpy $DefaultInstDir $INSTDIR
+FunctionEnd
+
+Function leaveDirectory
+  ${If} $InstallType == ${INSTALLTYPE_BASIC}
+    Call CheckExistingInstall
+  ${EndIf}
+  ${LeaveDirectoryCommon} "$(WARN_DISK_SPACE)" "$(WARN_WRITE_ACCESS)"
+FunctionEnd
+
+Function preShortcuts
+  StrCpy $PageName "Shortcuts"
+  ${CheckCustomCommon}
+  !insertmacro MUI_HEADER_TEXT "$(SHORTCUTS_PAGE_TITLE)" "$(SHORTCUTS_PAGE_SUBTITLE)"
+  !insertmacro MUI_INSTALLOPTIONS_DISPLAY "shortcuts.ini"
+FunctionEnd
+
+Function leaveShortcuts
+  ${MUI_INSTALLOPTIONS_READ} $0 "shortcuts.ini" "Settings" "State"
+  ${If} $0 != 0
+    Abort
+  ${EndIf}
+  ${MUI_INSTALLOPTIONS_READ} $AddDesktopSC "shortcuts.ini" "Field 2" "State"
+  ${MUI_INSTALLOPTIONS_READ} $AddStartMenuSC "shortcuts.ini" "Field 3" "State"
+  ${MUI_INSTALLOPTIONS_READ} $AddTaskbarSC "shortcuts.ini" "Field 4" "State"
+
+  ${If} $InstallType == ${INSTALLTYPE_CUSTOM}
+    Call CheckExistingInstall
+  ${EndIf}
+FunctionEnd
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+Function preComponents
+  ; If the service already exists, don't show this page
+  ServicesHelper::IsInstalled "MozillaMaintenance"
+  Pop $R9
+  ${If} $R9 == 1
+    ; The service already exists so don't show this page.
+    Abort
+  ${EndIf}
+
+  ; Don't show the custom components page if the
+  ; user is not an admin
+  Call IsUserAdmin
+  Pop $R9
+  ${If} $R9 != "true"
+    Abort
+  ${EndIf}
+
+  ; Only show the maintenance service page if we have write access to HKLM
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" \
+              "${BrandShortName}InstallerTest" "Write Test"
+  ${If} ${Errors}
+    ClearErrors
+    Abort
+  ${Else}
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+  ${EndIf}
+
+  StrCpy $PageName "Components"
+  ${CheckCustomCommon}
+  !insertmacro MUI_HEADER_TEXT "$(COMPONENTS_PAGE_TITLE)" "$(COMPONENTS_PAGE_SUBTITLE)"
+  !insertmacro MUI_INSTALLOPTIONS_DISPLAY "components.ini"
+FunctionEnd
+
+Function leaveComponents
+  ${MUI_INSTALLOPTIONS_READ} $0 "components.ini" "Settings" "State"
+  ${If} $0 != 0
+    Abort
+  ${EndIf}
+  ${MUI_INSTALLOPTIONS_READ} $InstallMaintenanceService "components.ini" "Field 2" "State"
+  ${If} $InstallType == ${INSTALLTYPE_CUSTOM}
+    Call CheckExistingInstall
+  ${EndIf}
+FunctionEnd
+!endif
+
+!ifdef MOZ_OPTIONAL_EXTENSIONS
+Function preExtensions
+  StrCpy $PageName "Extensions"
+  ${CheckCustomCommon}
+
+  ; Abort if no optional extensions configured in distribution/setup.ini
+  ${If} ${FileExists} "$EXEDIR\core\distribution\setup.ini"
+    ClearErrors
+    ReadINIStr $ExtensionRecommender "$EXEDIR\core\distribution\setup.ini" \
+      "OptionalExtensions" "Recommender.${AB_CD}"
+    ${If} ${Errors}
+      ClearErrors
+      ReadINIStr $ExtensionRecommender "$EXEDIR\core\distribution\setup.ini" \
+        "OptionalExtensions" "Recommender"
+    ${EndIf}
+
+    ${If} ${Errors}
+      ClearErrors
+      Abort
+    ${EndIf}
+  ${Else}
+    Abort
+  ${EndIf}
+
+  !insertmacro MUI_HEADER_TEXT "$(EXTENSIONS_PAGE_TITLE)" "$(EXTENSIONS_PAGE_SUBTITLE)"
+  !insertmacro MUI_INSTALLOPTIONS_DISPLAY "extensions.ini"
+FunctionEnd
+
+Function leaveExtensions
+  ${MUI_INSTALLOPTIONS_READ} $0 "extensions.ini" "Settings" "NumFields"
+  ${MUI_INSTALLOPTIONS_READ} $1 "extensions.ini" "Settings" "State"
+
+  ; $0 is count of checkboxes
+  IntOp $0 $0 - 1
+
+  ${If} $1 > $0
+    Abort
+  ${ElseIf} $1 == 0
+    ; $1 is count of selected optional extension(s)
+    StrCpy $1 0
+
+    StrCpy $2 2
+    ${Do}
+      ${MUI_INSTALLOPTIONS_READ} $3 "extensions.ini" "Field $2" "State"
+      ${If} $3 == ${BST_CHECKED}
+        IntOp $1 $1 + 1
+      ${EndIf}
+
+      IntOp $4 $2 - 2
+      WriteINIStr "$EXEDIR\core\distribution\setup.ini" \
+        "OptionalExtensions" "extension.$4.checked" "$3"
+
+      ${If} $0 == $2
+        ${ExitDo}
+      ${Else}
+        IntOp $2 $2 + 1
+      ${EndIf}
+    ${Loop}
+
+    ; Different from state of field 1, "0" means no optional extensions selected
+    ${If} $1 > 0
+      StrCpy $InstallOptionalExtensions "1"
+    ${Else}
+      StrCpy $InstallOptionalExtensions "0"
+    ${EndIf}
+
+    ${If} $InstallType == ${INSTALLTYPE_CUSTOM}
+      Call CheckExistingInstall
+    ${EndIf}
+  ${ElseIf} $1 == 1
+    ; Check/uncheck all optional extensions with field 1
+    ${MUI_INSTALLOPTIONS_READ} $1 "extensions.ini" "Field 1" "State"
+
+    StrCpy $2 2
+    ${Do}
+      ${MUI_INSTALLOPTIONS_READ} $3 "extensions.ini" "Field $2" "HWND"
+      SendMessage $3 ${BM_SETCHECK} $1 0
+
+      ${If} $0 == $2
+        ${ExitDo}
+      ${Else}
+        IntOp $2 $2 + 1
+      ${EndIf}
+    ${Loop}
+
+    Abort
+  ${ElseIf} $1 > 1
+    StrCpy $1 ${BST_CHECKED}
+
+    StrCpy $2 2
+    ${Do}
+      ${MUI_INSTALLOPTIONS_READ} $3 "extensions.ini" "Field $2" "State"
+      ${If} $3 == ${BST_UNCHECKED}
+        StrCpy $1 ${BST_UNCHECKED}
+        ${ExitDo}
+      ${EndIf}
+
+      ${If} $0 == $2
+        ${ExitDo}
+      ${Else}
+        IntOp $2 $2 + 1
+      ${EndIf}
+    ${Loop}
+
+    ; Check field 1 only if all optional extensions are selected
+    ${MUI_INSTALLOPTIONS_READ} $3 "extensions.ini" "Field 1" "HWND"
+    SendMessage $3 ${BM_SETCHECK} $1 0
+
+    Abort
+  ${EndIf}
+FunctionEnd
+!endif
+
+Function preSummary
+  StrCpy $PageName "Summary"
+  ; Setup the summary.ini file for the Custom Summary Page
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Settings" NumFields "3"
+
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Type   "label"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Text   "$(SUMMARY_INSTALLED_TO)"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Top    "5"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 1" Bottom "15"
+
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" Type   "text"
+  ; The contents of this control must be set as follows in the pre function
+  ; ${MUI_INSTALLOPTIONS_READ} $1 "summary.ini" "Field 2" "HWND"
+  ; SendMessage $1 ${WM_SETTEXT} 0 "STR:$INSTDIR"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" state  ""
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" Left   "0"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" Top    "17"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" Bottom "30"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 2" flags  "READONLY"
+
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Type   "label"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Left   "0"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Top    "130"
+  WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Bottom "150"
+
+  ${If} ${FileExists} "$INSTDIR\${FileMainEXE}"
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Text "$(SUMMARY_UPGRADE_CLICK)"
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Settings" NextButtonText "$(UPGRADE_BUTTON)"
+  ${Else}
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field 3" Text "$(SUMMARY_INSTALL_CLICK)"
+    DeleteINIStr "$PLUGINSDIR\summary.ini" "Settings" NextButtonText
+  ${EndIf}
+
+
+  ; Remove the "Field 4" ini section in case the user hits back and changes the
+  ; installation directory which could change whether the make default checkbox
+  ; should be displayed.
+  DeleteINISec "$PLUGINSDIR\summary.ini" "Field 4"
+
+  ; Check if it is possible to write to HKLM
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" "Write Test"
+  ${Unless} ${Errors}
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    ; Check if Firefox is the http handler for this user.
+    SetShellVarContext current ; Set SHCTX to the current user
+    ${IsHandlerForInstallDir} "http" $R9
+    ; If Firefox isn't the http handler for this user show the option to set
+    ; Firefox as the default browser.
+    ${If} "$R9" != "true"
+    ${AndIf} ${AtMostWin2008R2}
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Settings" NumFields "4"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Type   "checkbox"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Text   "$(SUMMARY_TAKE_DEFAULTS)"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Left   "0"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Right  "-1"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" State  "1"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Top    "32"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field 4" Bottom "53"
+    ${EndIf}
+  ${EndUnless}
+
+  ${If} "$TmpVal" == "true"
+    ; If there is already a Type entry in the "Field 4" section with a value of
+    ; checkbox then the set as the default browser checkbox is displayed and
+    ; this text must be moved below it.
+    ReadINIStr $0 "$PLUGINSDIR\summary.ini" "Field 4" "Type"
+    ${If} "$0" == "checkbox"
+      StrCpy $0 "5"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Top    "53"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Bottom "68"
+    ${Else}
+      StrCpy $0 "4"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Top    "35"
+      WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Bottom "50"
+    ${EndIf}
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Settings" NumFields "$0"
+
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Type   "label"
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Text   "$(SUMMARY_REBOOT_REQUIRED_INSTALL)"
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Left   "0"
+    WriteINIStr "$PLUGINSDIR\summary.ini" "Field $0" Right  "-1"
+  ${EndIf}
+
+  !insertmacro MUI_HEADER_TEXT "$(SUMMARY_PAGE_TITLE)" "$(SUMMARY_PAGE_SUBTITLE)"
+
+  ; The Summary custom page has a textbox that will automatically receive
+  ; focus. This sets the focus to the Install button instead.
+  !insertmacro MUI_INSTALLOPTIONS_INITDIALOG "summary.ini"
+  GetDlgItem $0 $HWNDPARENT 1
+  System::Call "user32::SetFocus(i r0, i 0x0007, i,i)i"
+  ${MUI_INSTALLOPTIONS_READ} $1 "summary.ini" "Field 2" "HWND"
+  SendMessage $1 ${WM_SETTEXT} 0 "STR:$INSTDIR"
+  !insertmacro MUI_INSTALLOPTIONS_SHOW
+FunctionEnd
+
+Function leaveSummary
+  Call CheckIfInstallExisted
+
+  ; Try to delete the app executable and if we can't delete it try to find the
+  ; app's message window and prompt the user to close the app. This allows
+  ; running an instance that is located in another directory. If for whatever
+  ; reason there is no message window we will just rename the app's files and
+  ; then remove them on restart.
+  ClearErrors
+  ${DeleteFile} "$INSTDIR\${FileMainEXE}"
+  ${If} ${Errors}
+    ${ManualCloseAppPrompt} "${MainWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_INSTALL)"
+    ${ManualCloseAppPrompt} "${DialogWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_INSTALL)"
+  ${EndIf}
+FunctionEnd
+
+; When we add an optional action to the finish page the cancel button is
+; enabled. This disables it and leaves the finish button as the only choice.
+Function preFinish
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $FinishPhaseStart
+
+  StrCpy $PageName ""
+  ${EndInstallLog} "${BrandFullName}"
+  !insertmacro MUI_INSTALLOPTIONS_WRITE "ioSpecial.ini" "settings" "cancelenabled" "0"
+
+  ; We don't want the header bitmap showing on the finish page.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_HIDE}
+FunctionEnd
+
+Function showFinish
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 2" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 3" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ; We need to overwrite the sidebar image so that we get it drawn with proper
+  ; scaling if the display is scaled at anything above 100%.
+  ${ChangeMUISidebarImage} "$PLUGINSDIR\modern-wizard.bmp"
+
+  ; Field 4 is the launch checkbox. Since it's a checkbox, we need to
+  ; clear the theme from it before we can set its background color.
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 4" "HWND"
+  System::Call 'uxtheme::SetWindowTheme(i $0, w " ", w " ")'
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+FunctionEnd
+
+Function postFinish
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $FinishPhaseEnd
+FunctionEnd
+
+################################################################################
+# Initialization Functions
+
+Function .onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  ; Initialize the variables used for telemetry
+  StrCpy $SetAsDefault true
+  StrCpy $HadOldInstall false
+  StrCpy $InstallExisted ""
+  StrCpy $DefaultInstDir $INSTDIR
+  StrCpy $IntroPhaseStart 0
+  StrCpy $OptionsPhaseStart 0
+  StrCpy $InstallPhaseStart 0
+  StrCpy $FinishPhaseStart 0
+  StrCpy $FinishPhaseEnd 0
+  StrCpy $InstallResult "cancel"
+  StrCpy $LaunchedNewApp false
+
+  StrCpy $PageName ""
+  StrCpy $LANGUAGE 0
+  ${SetBrandNameVars} "$EXEDIR\core\distribution\setup.ini"
+
+  ; Don't install on systems that don't support SSE2. The parameter value of
+  ; 10 is for PF_XMMI64_INSTRUCTIONS_AVAILABLE which will check whether the
+  ; SSE2 instruction set is available. Result returned in $R7.
+  System::Call "kernel32::IsProcessorFeaturePresent(i 10)i .R7"
+
+  ; Windows NT 6.0 (Vista/Server 2008) and lower are not supported.
+  ${Unless} ${AtLeastWin7}
+    ${If} "$R7" == "0"
+      strCpy $R7 "$(WARN_MIN_SUPPORTED_OSVER_CPU_MSG)"
+    ${Else}
+      strCpy $R7 "$(WARN_MIN_SUPPORTED_OSVER_MSG)"
+    ${EndIf}
+    MessageBox MB_OKCANCEL|MB_ICONSTOP "$R7" IDCANCEL +2
+    ExecShell "open" "${URLSystemRequirements}"
+    Quit
+  ${EndUnless}
+
+  ; SSE2 CPU support
+  ${If} "$R7" == "0"
+    MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_CPU_MSG)" IDCANCEL +2
+    ExecShell "open" "${URLSystemRequirements}"
+    Quit
+  ${EndIf}
+
+!ifdef HAVE_64BIT_BUILD
+  ${If} "${ARCH}" == "AArch64"
+    ${IfNot} ${IsNativeARM64}
+    ${OrIfNot} ${AtLeastWin10}
+      MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_OSVER_MSG)" IDCANCEL +2
+      ExecShell "open" "${URLSystemRequirements}"
+      Quit
+    ${EndIf}
+  ${ElseIfNot} ${RunningX64}
+    MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_OSVER_MSG)" IDCANCEL +2
+    ExecShell "open" "${URLSystemRequirements}"
+    Quit
+  ${EndIf}
+  SetRegView 64
+!endif
+
+  SetShellVarContext all
+  ${GetFirstInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $0
+  ${If} "$0" == "false"
+    SetShellVarContext current
+    ${GetFirstInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $0
+    ${If} "$0" == "false"
+      StrCpy $HadOldInstall false
+    ${Else}
+      StrCpy $HadOldInstall true
+    ${EndIf}
+  ${Else}
+    StrCpy $HadOldInstall true
+  ${EndIf}
+
+  ${InstallOnInitCommon} "$(WARN_MIN_SUPPORTED_OSVER_CPU_MSG)"
+
+  !insertmacro InitInstallOptionsFile "options.ini"
+  !insertmacro InitInstallOptionsFile "shortcuts.ini"
+  !insertmacro InitInstallOptionsFile "components.ini"
+  !insertmacro InitInstallOptionsFile "extensions.ini"
+  !insertmacro InitInstallOptionsFile "summary.ini"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Settings" NumFields "5"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Type   "label"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Text   "$(OPTIONS_SUMMARY)"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Top    "0"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 1" Bottom "10"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Type   "RadioButton"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Text   "$(OPTION_STANDARD_RADIO)"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Left   "0"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Top    "25"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Bottom "35"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" State  "1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 2" Flags  "GROUP"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Type   "RadioButton"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Text   "$(OPTION_CUSTOM_RADIO)"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Left   "0"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Top    "55"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" Bottom "65"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 3" State  "0"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Type   "label"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Text   "$(OPTION_STANDARD_DESC)"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Left   "15"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Top    "37"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 4" Bottom "57"
+
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Type   "label"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Text   "$(OPTION_CUSTOM_DESC)"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Left   "15"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Top    "67"
+  WriteINIStr "$PLUGINSDIR\options.ini" "Field 5" Bottom "87"
+
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Settings" NumFields "4"
+
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Type   "label"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Text   "$(CREATE_ICONS_DESC)"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Top    "5"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 1" Bottom "15"
+
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Text   "$(ICONS_DESKTOP)"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Left   "0"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Top    "20"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Bottom "30"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" State  "1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 2" Flags  "GROUP"
+
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Text   "$(ICONS_STARTMENU)"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Left   "0"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Top    "40"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Bottom "50"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" State  "1"
+
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Text   "$(ICONS_TASKBAR)"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Left   "0"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Top    "60"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Bottom "70"
+  WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" State  "1"
+
+  ; Setup the components.ini file for the Components Page
+  WriteINIStr "$PLUGINSDIR\components.ini" "Settings" NumFields "2"
+
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Type   "label"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Text   "$(OPTIONAL_COMPONENTS_DESC)"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Top    "5"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Bottom "25"
+
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Text   "$(MAINTENANCE_SERVICE_CHECKBOX_DESC)"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Left   "0"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Top    "27"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Bottom "37"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" State  "1"
+  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Flags  "GROUP"
+
+  ; Setup the extensions.ini file for the Custom Extensions Page
+  StrCpy $R9 0
+  StrCpy $R8 ${BST_CHECKED}
+
+  ${If} ${FileExists} "$EXEDIR\core\distribution\setup.ini"
+    ${Do}
+      IntOp $R7 $R9 + 2
+
+      ClearErrors
+      ReadINIStr $R6 "$EXEDIR\core\distribution\setup.ini" \
+        "OptionalExtensions" "extension.$R9.name.${AB_CD}"
+      ${If} ${Errors}
+        ClearErrors
+        ReadINIStr $R6 "$EXEDIR\core\distribution\setup.ini" \
+          "OptionalExtensions" "extension.$R9.name"
+      ${EndIf}
+
+      ${If} ${Errors}
+        ${ExitDo}
+      ${EndIf}
+
+      ; Each row moves down by 13 DLUs
+      IntOp $R2 $R9 * 13
+      IntOp $R2 $R2 + 21
+      IntOp $R1 $R2 + 10
+
+      ClearErrors
+      ReadINIStr $R0 "$EXEDIR\core\distribution\setup.ini" \
+        "OptionalExtensions" "extension.$R9.checked"
+      ${If} ${Errors}
+        StrCpy $R0 ${BST_CHECKED}
+      ${ElseIf} $R0 == "0"
+        StrCpy $R8 ${BST_UNCHECKED}
+      ${EndIf}
+
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Type   "checkbox"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Text   "$R6"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Left   "11"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Right  "-1"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Top    "$R2"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Bottom "$R1"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" State  "$R0"
+      WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R7" Flags  "NOTIFY"
+
+      IntOp $R9 $R9 + 1
+    ${Loop}
+  ${EndIf}
+
+  IntOp $R9 $R9 + 2
+
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Settings" NumFields "$R9"
+
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Type   "checkbox"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Text   "$(OPTIONAL_EXTENSIONS_CHECKBOX_DESC)"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Top    "5"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Bottom "15"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" State  "$R8"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field 1" Flags  "GROUP|NOTIFY"
+
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Type   "label"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Text   "$(OPTIONAL_EXTENSIONS_DESC)"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Left   "0"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Top    "-23"
+  WriteINIStr "$PLUGINSDIR\extensions.ini" "Field $R9" Bottom "-5"
+
+  ; There must always be a core directory.
+  ${GetSize} "$EXEDIR\core\" "/S=0K" $R5 $R7 $R8
+  SectionSetSize ${APP_IDX} $R5
+
+  ; Initialize $hHeaderBitmap to prevent redundant changing of the bitmap if
+  ; the user clicks the back button
+  StrCpy $hHeaderBitmap ""
+FunctionEnd
+
+Function .onGUIEnd
+  ${OnEndCommon}
+  Call SendPing
+FunctionEnd
diff --git a/browser/installer/windows/nsis/maintenanceservice_installer.nsi b/browser/installer/windows/nsis/maintenanceservice_installer.nsi
new file mode 100644
index 0000000000..ff87ef0839
--- /dev/null
+++ b/browser/installer/windows/nsis/maintenanceservice_installer.nsi
@@ -0,0 +1,343 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+; Set verbosity to 3 (e.g. no script) to lessen the noise in the build logs
+!verbose 3
+
+; 7-Zip provides better compression than the lzma from NSIS so we add the files
+; uncompressed and use 7-Zip to create a SFX archive of it
+SetDatablockOptimize on
+SetCompress off
+CRCCheck on
+
+RequestExecutionLevel admin
+
+Unicode true
+ManifestSupportedOS all
+ManifestDPIAware true
+
+!addplugindir ./
+
+; Variables
+Var TempMaintServiceName
+Var BrandFullNameDA
+Var BrandFullName
+
+; Other included files may depend upon these includes!
+; The following includes are provided by NSIS.
+!include FileFunc.nsh
+!include LogicLib.nsh
+!include MUI.nsh
+!include WinMessages.nsh
+!include WinVer.nsh
+!include WordFunc.nsh
+
+!insertmacro GetOptions
+!insertmacro GetParameters
+!insertmacro GetSize
+
+; The test machines use this fallback key to run tests.
+; And anyone that wants to run tests themselves should already have 
+; this installed.
+!define FallbackKey \
+  "SOFTWARE\Mozilla\MaintenanceService\3932ecacee736d366d6436db0f55bce4"
+
+!define CompanyName "Mozilla Corporation"
+!define BrandFullNameInternal ""
+
+; The following includes are custom.
+!include defines.nsi
+; We keep defines.nsi defined so that we get other things like 
+; the version number, but we redefine BrandFullName
+!define MaintFullName "Mozilla Maintenance Service"
+!ifdef BrandFullName
+!undef BrandFullName
+!endif
+!define BrandFullName "${MaintFullName}"
+
+!include common.nsh
+!include locales.nsi
+
+VIAddVersionKey "FileDescription" "${MaintFullName} Installer"
+VIAddVersionKey "OriginalFilename" "maintenanceservice_installer.exe"
+
+Name "${MaintFullName}"
+OutFile "maintenanceservice_installer.exe"
+
+; Get installation folder from registry if available
+InstallDirRegKey HKLM "Software\Mozilla\MaintenanceService" ""
+
+SetOverwrite on
+
+; serviceinstall.cpp also uses this key, in case the path is changed, update
+; there too.
+!define MaintUninstallKey \
+ "Software\Microsoft\Windows\CurrentVersion\Uninstall\MozillaMaintenanceService"
+
+; Always install into the 32-bit location even if we have a 64-bit build.
+; This is because we use only 1 service for all Firefox channels.
+; Allow either x86 and x64 builds to exist at this location, depending on
+; what is the latest build.
+InstallDir "$PROGRAMFILES32\${MaintFullName}\"
+ShowUnInstDetails nevershow
+
+################################################################################
+# Modern User Interface - MUI
+
+!define MUI_ICON setup.ico
+!define MUI_UNICON setup.ico
+!define MUI_WELCOMEPAGE_TITLE_3LINES
+!define MUI_UNWELCOMEFINISHPAGE_BITMAP wizWatermark.bmp
+
+;Interface Settings
+!define MUI_ABORTWARNING
+
+; Uninstaller Pages
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+
+################################################################################
+# Language
+
+!insertmacro MOZ_MUI_LANGUAGE 'baseLocale'
+!verbose push
+!verbose 3
+!include "overrideLocale.nsh"
+!include "customLocale.nsh"
+!verbose pop
+
+; Set this after the locale files to override it if it is in the locale
+; using " " for BrandingText will hide the "Nullsoft Install System..." branding
+BrandingText " "
+
+Function .onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  SetSilent silent
+
+  ${Unless} ${AtLeastWin7}
+    Abort
+  ${EndUnless}
+FunctionEnd
+
+Function un.onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  StrCpy $BrandFullNameDA "${MaintFullName}"
+  StrCpy $BrandFullName "${MaintFullName}"
+FunctionEnd
+
+Section "MaintenanceService"
+  AllowSkipFiles off
+
+  CreateDirectory $INSTDIR
+  SetOutPath $INSTDIR
+
+  ; If the service already exists, then it will be stopped when upgrading it
+  ; via the maintenanceservice_tmp.exe command executed below.
+  ; The maintenanceservice_tmp.exe command will rename the file to
+  ; maintenanceservice.exe if maintenanceservice_tmp.exe is newer.
+  ; If the service does not exist yet, we install it and drop the file on
+  ; disk as maintenanceservice.exe directly.
+  StrCpy $TempMaintServiceName "maintenanceservice.exe"
+  IfFileExists "$INSTDIR\maintenanceservice.exe" 0 skipAlreadyExists
+    StrCpy $TempMaintServiceName "maintenanceservice_tmp.exe"
+  skipAlreadyExists:
+
+  ; We always write out a copy and then decide whether to install it or 
+  ; not via calling its 'install' cmdline which works by version comparison.
+  CopyFiles /SILENT "$EXEDIR\maintenanceservice.exe" "$INSTDIR\$TempMaintServiceName"
+
+  ; The updater.ini file is only used when performing an install or upgrade,
+  ; and only if that install or upgrade is successful.  If an old updater.ini
+  ; happened to be copied into the maintenance service installation directory
+  ; but the service was not newer, the updater.ini file would be unused.
+  ; It is used to fill the description of the service on success.
+  CopyFiles /SILENT "$EXEDIR\updater.ini" "$INSTDIR\updater.ini"
+
+  ; Install the application maintenance service.
+  ; If a service already exists, the command line parameter will stop the
+  ; service and only install itself if it is newer than the already installed
+  ; service.  If successful it will remove the old maintenanceservice.exe
+  ; and replace it with maintenanceservice_tmp.exe.
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/Upgrade" $0
+  ${If} ${Errors}
+    ExecWait '"$INSTDIR\$TempMaintServiceName" install'
+  ${Else}
+    ; The upgrade cmdline is the same as install except
+    ; It will fail if the service isn't already installed.
+    ExecWait '"$INSTDIR\$TempMaintServiceName" upgrade'
+  ${EndIf}
+
+  WriteUninstaller "$INSTDIR\Uninstall.exe"
+
+  ; Since the Maintenance service can be installed either x86 or x64,
+  ; always use the 64-bit registry.
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    ; Previous versions always created the uninstall key in the 32-bit registry.
+    ; Clean those old entries out if they still exist.
+    SetRegView 32
+    DeleteRegKey HKLM "${MaintUninstallKey}"
+    ; Preserve the lastused value before we switch to 64.
+    SetRegView lastused
+
+    SetRegView 64
+  ${EndIf}
+
+  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayName" "${MaintFullName}"
+  WriteRegStr HKLM "${MaintUninstallKey}" "UninstallString" \
+                   '"$INSTDIR\uninstall.exe"'
+  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayIcon" \
+                   "$INSTDIR\Uninstall.exe,0"
+  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayVersion" "${AppVersion}"
+  WriteRegStr HKLM "${MaintUninstallKey}" "Publisher" "Mozilla"
+  WriteRegStr HKLM "${MaintUninstallKey}" "Comments" "${BrandFullName}"
+  WriteRegDWORD HKLM "${MaintUninstallKey}" "NoModify" 1
+  ${GetSize} "$INSTDIR" "/S=0K" $R2 $R3 $R4
+  WriteRegDWORD HKLM "${MaintUninstallKey}" "EstimatedSize" $R2
+
+  ; Write out that a maintenance service was attempted.
+  ; We do this because on upgrades we will check this value and we only
+  ; want to install once on the first upgrade to maintenance service.
+  ; Also write out that we are currently installed, preferences will check
+  ; this value to determine if we should show the service update pref.
+  WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Attempted" 1
+  WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Installed" 1
+  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "FFPrefetchDisabled"
+
+  ; Included here for debug purposes only.  
+  ; These keys are used to bypass the installation dir is a valid installation
+  ; check from the service so that tests can be run.
+  ; WriteRegStr HKLM "${FallbackKey}\0" "name" "Mozilla Corporation"
+  ; WriteRegStr HKLM "${FallbackKey}\0" "issuer" "DigiCert SHA2 Assured ID Code Signing CA"
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    SetRegView lastused
+  ${EndIf}
+SectionEnd
+
+; By renaming before deleting we improve things slightly in case
+; there is a file in use error. In this case a new install can happen.
+Function un.RenameDelete
+  Pop $9
+  ; If the .moz-delete file already exists previously, delete it
+  ; If it doesn't exist, the call is ignored.
+  ; We don't need to pass /REBOOTOK here since it was already marked that way
+  ; if it exists.
+  Delete "$9.moz-delete"
+  Rename "$9" "$9.moz-delete"
+  ${If} ${Errors}
+    Delete /REBOOTOK "$9"
+  ${Else} 
+    Delete /REBOOTOK "$9.moz-delete"
+  ${EndIf}
+  ClearErrors
+FunctionEnd
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; NOTE: The maintenance service uninstaller does not currently get updated when
+; the service itself does during application updates. Under normal use, only
+; running the Firefox installer will generate a new maintenance service
+; uninstaller. That means anything added here will not be seen by users until
+; they run a new Firefox installer. Fixing this is tracked in
+; https://bugzilla.mozilla.org/show_bug.cgi?id=1665193
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+Section "Uninstall"
+  ; Delete the service so that no updates will be attempted
+  ExecWait '"$INSTDIR\maintenanceservice.exe" uninstall'
+
+  Push "$INSTDIR\updater.ini"
+  Call un.RenameDelete
+  Push "$INSTDIR\maintenanceservice.exe"
+  Call un.RenameDelete
+  Push "$INSTDIR\maintenanceservice_tmp.exe"
+  Call un.RenameDelete
+  Push "$INSTDIR\maintenanceservice.old"
+  Call un.RenameDelete
+  Push "$INSTDIR\Uninstall.exe"
+  Call un.RenameDelete
+  Push "$INSTDIR\update\updater.ini"
+  Call un.RenameDelete
+  Push "$INSTDIR\update\updater.exe"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-1.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-2.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-3.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-4.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-5.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-6.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-7.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-8.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-9.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-10.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-install.log"
+  Call un.RenameDelete
+  Push "$INSTDIR\logs\maintenanceservice-uninstall.log"
+  Call un.RenameDelete
+  SetShellVarContext all
+  Push "$APPDATA\Mozilla\logs\maintenanceservice.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-1.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-2.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-3.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-4.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-5.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-6.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-7.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-8.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-9.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-10.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-install.log"
+  Call un.RenameDelete
+  Push "$APPDATA\Mozilla\logs\maintenanceservice-uninstall.log"
+  Call un.RenameDelete
+  RMDir /REBOOTOK "$APPDATA\Mozilla\logs"
+  RMDir /REBOOTOK "$APPDATA\Mozilla"
+  RMDir /REBOOTOK "$INSTDIR\logs"
+  RMDir /REBOOTOK "$INSTDIR\update"
+  RMDir /REBOOTOK "$INSTDIR\UpdateLogs"
+  RMDir /REBOOTOK "$INSTDIR"
+
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    SetRegView 64
+  ${EndIf}
+  DeleteRegKey HKLM "${MaintUninstallKey}"
+  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "Installed"
+  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "FFPrefetchDisabled"
+  DeleteRegKey HKLM "${FallbackKey}\"
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    SetRegView lastused
+  ${EndIf}
+SectionEnd
diff --git a/browser/installer/windows/nsis/shared.nsh b/browser/installer/windows/nsis/shared.nsh
new file mode 100755
index 0000000000..dd85dfed8e
--- /dev/null
+++ b/browser/installer/windows/nsis/shared.nsh
@@ -0,0 +1,1808 @@
+# 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/.
+
+!macro PostUpdate
+  ${CreateShortcutsLog}
+
+  ; Remove registry entries for non-existent apps and for apps that point to our
+  ; install location in the Software\Mozilla key and uninstall registry entries
+  ; that point to our install location for both HKCU and HKLM.
+  SetShellVarContext current  ; Set SHCTX to the current user (e.g. HKCU)
+  ${RegCleanMain} "Software\Mozilla"
+  ${RegCleanUninstall}
+  ${UpdateProtocolHandlers}
+
+  ; setup the application model id registration value
+  ${InitHashAppModelId} "$INSTDIR" "Software\Mozilla\${AppName}\TaskBarIDs"
+
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" "Write Test"
+  ${If} ${Errors}
+    StrCpy $TmpVal "HKCU"
+  ${Else}
+    SetShellVarContext all    ; Set SHCTX to all users (e.g. HKLM)
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    StrCpy $TmpVal "HKLM"
+    ${RegCleanMain} "Software\Mozilla"
+    ${RegCleanUninstall}
+    ${UpdateProtocolHandlers}
+    ${FixShellIconHandler} "HKLM"
+    ${SetAppLSPCategories} ${LSP_CATEGORIES}
+
+    ; Add the Firewall entries after an update
+    Call AddFirewallEntries
+
+    ReadRegStr $0 HKLM "Software\mozilla.org\Mozilla" "CurrentVersion"
+    ${If} "$0" != "${GREVersion}"
+      WriteRegStr HKLM "Software\mozilla.org\Mozilla" "CurrentVersion" "${GREVersion}"
+    ${EndIf}
+  ${EndIf}
+
+  ; Adds a pinned Task Bar shortcut (see MigrateTaskBarShortcut for details).
+  ; When we enabled this feature for Windows 10 & 11 we decided _not_ to pin
+  ; during an update (even once) because we already offered to do when the
+  ; the user originally installed, and we don't want to go against their
+  ; explicit wishes.
+  ; For Windows 7 and 8, we've been doing this ~forever, and those users may
+  ; not have experienced the onboarding offer to pin to taskbar, so we're
+  ; leaving it enabled there.
+  ${If} ${AtMostWin2012R2}
+    ${MigrateTaskBarShortcut} "$AddTaskbarSC"
+  ${EndIf}
+
+  ; Update the name/icon/AppModelID of our shortcuts as needed, then update the
+  ; lastwritetime of the Start Menu shortcut to clear the tile icon cache.
+  ; Do this for both shell contexts in case the user has shortcuts in multiple
+  ; locations, then restore the previous context at the end.
+  SetShellVarContext all
+  ${UpdateShortcutsBranding}
+  ${If} ${AtLeastWin8}
+    ${TouchStartMenuShortcut}
+  ${EndIf}
+  Call FixShortcutAppModelIDs
+  SetShellVarContext current
+  ${UpdateShortcutsBranding}
+  ${If} ${AtLeastWin8}
+    ${TouchStartMenuShortcut}
+  ${EndIf}
+  Call FixShortcutAppModelIDs
+  ${If} $TmpVal == "HKLM"
+    SetShellVarContext all
+  ${ElseIf} $TmpVal == "HKCU"
+    SetShellVarContext current
+  ${EndIf}
+
+  ${RemoveDeprecatedKeys}
+  ${Set32to64DidMigrateReg}
+
+  ${SetAppKeys}
+  ${FixClassKeys}
+  ${SetUninstallKeys}
+  ${If} $TmpVal == "HKLM"
+    ${SetStartMenuInternet} HKLM
+  ${ElseIf} $TmpVal == "HKCU"
+    ${SetStartMenuInternet} HKCU
+  ${EndIf}
+
+  ; Remove files that may be left behind by the application in the
+  ; VirtualStore directory.
+  ${CleanVirtualStore}
+
+  ${RemoveDeprecatedFiles}
+
+  ; Fix the distribution.ini file if applicable
+  ${FixDistributionsINI}
+
+  ; https://bugzilla.mozilla.org/show_bug.cgi?id=1616355
+  ; Migrate postSigningData file if present, and if it doesn't already exist.
+  ${GetLocalAppDataFolder} $0
+  ${If} ${FileExists} "$INSTDIR\postSigningData"
+    ; If it already exists, just delete the appdata one.
+    ; It's possible this was for a different install, but it's impossible to
+    ; know for sure, so we may as well just get rid of it.
+    Delete /REBOOTOK "$0\Mozilla\Firefox\postSigningData"
+  ${Else}
+    ${If} ${FileExists} "$0\Mozilla\Firefox\postSigningData"
+      Rename "$0\Mozilla\Firefox\postSigningData" "$INSTDIR\postSigningData"
+    ${EndIf}
+  ${EndIf}
+
+  RmDir /r /REBOOTOK "$INSTDIR\${TO_BE_DELETED}"
+
+  ; Register AccessibleHandler.dll with COM (this requires write access to HKLM)
+  ${RegisterAccessibleHandler}
+
+  ; Register AccessibleMarshal.dll with COM (this requires write access to HKLM)
+  ${RegisterAccessibleMarshal}
+
+  ; Record the Windows Error Reporting module
+  WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows\Windows Error Reporting\RuntimeExceptionHelperModules" "$INSTDIR\mozwer.dll" 0
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+  Call IsUserAdmin
+  Pop $R0
+  ${If} $R0 == "true"
+  ; Only proceed if we have HKLM write access
+  ${AndIf} $TmpVal == "HKLM"
+    ; We check to see if the maintenance service install was already attempted.
+    ; Since the Maintenance service can be installed either x86 or x64,
+    ; always use the 64-bit registry for checking if an attempt was made.
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView 64
+    ${EndIf}
+    ReadRegDWORD $5 HKLM "Software\Mozilla\MaintenanceService" "Attempted"
+    ClearErrors
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView lastused
+    ${EndIf}
+
+    ; Add the registry keys for allowed certificates.
+    ${AddMaintCertKeys}
+
+    ; If the maintenance service is already installed, do nothing.
+    ; The maintenance service will launch:
+    ; maintenanceservice_installer.exe /Upgrade to upgrade the maintenance
+    ; service if necessary.   If the update was done from updater.exe without
+    ; the service (i.e. service is failing), updater.exe will do the update of
+    ; the service.  The reasons we do not do it here is because we don't want
+    ; to have to prompt for limited user accounts when the service isn't used
+    ; and we currently call the PostUpdate twice, once for the user and once
+    ; for the SYSTEM account.  Also, this would stop the maintenance service
+    ; and we need a return result back to the service when run that way.
+    ${If} $5 == ""
+      ; An install of maintenance service was never attempted.
+      ; We know we are an Admin and that we have write access into HKLM
+      ; based on the above checks, so attempt to just run the EXE.
+      ; In the worst case, in case there is some edge case with the
+      ; IsAdmin check and the permissions check, the maintenance service
+      ; will just fail to be attempted to be installed.
+      nsExec::Exec "$\"$INSTDIR\maintenanceservice_installer.exe$\""
+    ${EndIf}
+  ${EndIf}
+!endif
+
+!ifdef MOZ_LAUNCHER_PROCESS
+  ${ResetLauncherProcessDefaults}
+!endif
+
+  ${If} ${AtLeastWin10}
+    ${WriteToastNotificationRegistration} $TmpVal
+  ${EndIf}
+
+; Make sure the scheduled task registration for the default browser agent gets
+; updated, but only if we're not the instance of PostUpdate that was started
+; by the service, because this needs to run as the actual user. Also, don't do
+; that if the installer was told not to register the agent task at all.
+!ifdef MOZ_DEFAULT_BROWSER_AGENT
+${If} $TmpVal == "HKCU"
+  ClearErrors
+  ReadRegDWORD $0 HKCU "Software\Mozilla\${AppName}\Installer\$AppUserModelID" \
+                    "DidRegisterDefaultBrowserAgent"
+  ${If} $0 != 0
+  ${OrIf} ${Errors}
+    ExecWait '"$INSTDIR\default-browser-agent.exe" register-task $AppUserModelID'
+  ${EndIf}
+${ElseIf} $TmpVal == "HKLM"
+  ; If we're the privileged PostUpdate, make sure that the unprivileged one
+  ; will have permission to create a task by clearing out the old one first.
+  ExecWait '"$INSTDIR\default-browser-agent.exe" unregister-task $AppUserModelID'
+${EndIf}
+!endif
+
+${RemoveDefaultBrowserAgentShortcut}
+!macroend
+!define PostUpdate "!insertmacro PostUpdate"
+
+; Update the last modified time on the Start Menu shortcut, so that its icon
+; gets refreshed. Should be called on Win8+ after UpdateShortcutBranding.
+!macro TouchStartMenuShortcut
+  ${If} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+    FileOpen $0 "$SMPROGRAMS\${BrandShortName}.lnk" a
+    ${IfNot} ${Errors}
+      System::Call '*(i, i) p .r1'
+      System::Call 'kernel32::GetSystemTimeAsFileTime(p r1)'
+      System::Call 'kernel32::SetFileTime(p r0, i 0, i 0, p r1) i .r2'
+      System::Free $1
+      FileClose $0
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define TouchStartMenuShortcut "!insertmacro TouchStartMenuShortcut"
+
+!macro AddPrivateBrowsingShortcut
+  ${IfNot} ${FileExists} "$SMPROGRAMS\$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk"
+    CreateShortcut "$SMPROGRAMS\$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk" "$INSTDIR\${PrivateBrowsingEXE}" "" "$INSTDIR\${PrivateBrowsingEXE}" ${IDI_PBICON_PB_EXE_ZERO_BASED}
+    ShellLink::SetShortcutWorkingDirectory "$SMPROGRAMS\$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk" "$INSTDIR"
+    ShellLink::SetShortcutDescription "$SMPROGRAMS\$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk" "$(PRIVATE_BROWSING_SHORTCUT_TITLE)"
+    ApplicationID::Set "$SMPROGRAMS\$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk" "$AppUserModelID;PrivateBrowsingAUMID" "true"
+    ${LogStartMenuShortcut} "$(PRIVATE_BROWSING_SHORTCUT_TITLE).lnk"
+  ${EndIf}
+!macroend
+!define AddPrivateBrowsingShortcut "!insertmacro AddPrivateBrowsingShortcut"
+
+!macro SetAsDefaultAppGlobal
+  ${RemoveDeprecatedKeys} ; Does not use SHCTX
+
+  SetShellVarContext all      ; Set SHCTX to all users (e.g. HKLM)
+  ${SetHandlers} ; Uses SHCTX
+  ${SetStartMenuInternet} "HKLM"
+  ${FixShellIconHandler} "HKLM"
+  ${ShowShortcuts}
+!macroend
+!define SetAsDefaultAppGlobal "!insertmacro SetAsDefaultAppGlobal"
+
+; Removes shortcuts for this installation. This should also remove the
+; application from Open With for the file types the application handles
+; (bug 370480).
+!macro HideShortcuts
+  ; Find the correct registry path to clear IconsVisible.
+  StrCpy $R1 "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID\InstallInfo"
+  ReadRegDWORD $0 HKLM "$R1" "ShowIconsCommand"
+  ${If} ${Errors}
+    ${StrFilter} "${FileMainEXE}" "+" "" "" $0
+    StrCpy $R1 "Software\Clients\StartMenuInternet\$0\InstallInfo"
+  ${EndIf}
+  WriteRegDWORD HKLM "$R1" "IconsVisible" 0
+  ${If} ${AtLeastWin8}
+    WriteRegDWORD HKCU "$R1" "IconsVisible" 0
+  ${EndIf}
+
+  SetShellVarContext all  ; Set $DESKTOP to All Users
+  ${Unless} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+    SetShellVarContext current  ; Set $DESKTOP to the current user's desktop
+  ${EndUnless}
+
+  ${If} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+    ShellLink::GetShortCutArgs "$DESKTOP\${BrandShortName}.lnk"
+    Pop $0
+    ${If} "$0" == ""
+      ShellLink::GetShortCutTarget "$DESKTOP\${BrandShortName}.lnk"
+      Pop $0
+      ${GetLongPath} "$0" $0
+      ${If} "$0" == "$INSTDIR\${FileMainEXE}"
+        Delete "$DESKTOP\${BrandShortName}.lnk"
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  SetShellVarContext all  ; Set $SMPROGRAMS to All Users
+  ${Unless} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+    SetShellVarContext current  ; Set $SMPROGRAMS to the current user's Start
+                                ; Menu Programs directory
+  ${EndUnless}
+
+  ${If} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+    ShellLink::GetShortCutArgs "$SMPROGRAMS\${BrandShortName}.lnk"
+    Pop $0
+    ${If} "$0" == ""
+      ShellLink::GetShortCutTarget "$SMPROGRAMS\${BrandShortName}.lnk"
+      Pop $0
+      ${GetLongPath} "$0" $0
+      ${If} "$0" == "$INSTDIR\${FileMainEXE}"
+        Delete "$SMPROGRAMS\${BrandShortName}.lnk"
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  ${If} ${FileExists} "$QUICKLAUNCH\${BrandShortName}.lnk"
+    ShellLink::GetShortCutArgs "$QUICKLAUNCH\${BrandShortName}.lnk"
+    Pop $0
+    ${If} "$0" == ""
+      ShellLink::GetShortCutTarget "$QUICKLAUNCH\${BrandShortName}.lnk"
+      Pop $0
+      ${GetLongPath} "$0" $0
+      ${If} "$0" == "$INSTDIR\${FileMainEXE}"
+        Delete "$QUICKLAUNCH\${BrandShortName}.lnk"
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define HideShortcuts "!insertmacro HideShortcuts"
+
+; Adds shortcuts for this installation. This should also add the application
+; to Open With for the file types the application handles (bug 370480).
+!macro ShowShortcuts
+  ; Find the correct registry path to set IconsVisible.
+  StrCpy $R1 "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID\InstallInfo"
+  ReadRegDWORD $0 HKLM "$R1" "ShowIconsCommand"
+  ${If} ${Errors}
+    ${StrFilter} "${FileMainEXE}" "+" "" "" $0
+    StrCpy $R1 "Software\Clients\StartMenuInternet\$0\InstallInfo"
+  ${EndIf}
+  WriteRegDWORD HKLM "$R1" "IconsVisible" 1
+  ${If} ${AtLeastWin8}
+    WriteRegDWORD HKCU "$R1" "IconsVisible" 1
+  ${EndIf}
+
+  SetShellVarContext all  ; Set $DESKTOP to All Users
+  ${Unless} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+    CreateShortCut "$DESKTOP\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+    ${If} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+      ShellLink::SetShortCutWorkingDirectory "$DESKTOP\${BrandShortName}.lnk" "$INSTDIR"
+      ${If} ${AtLeastWin7}
+      ${AndIf} "$AppUserModelID" != ""
+        ApplicationID::Set "$DESKTOP\${BrandShortName}.lnk" "$AppUserModelID" "true"
+      ${EndIf}
+    ${Else}
+      SetShellVarContext current  ; Set $DESKTOP to the current user's desktop
+      ${Unless} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+        CreateShortCut "$DESKTOP\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+        ${If} ${FileExists} "$DESKTOP\${BrandShortName}.lnk"
+          ShellLink::SetShortCutWorkingDirectory "$DESKTOP\${BrandShortName}.lnk" \
+                                                 "$INSTDIR"
+          ${If} ${AtLeastWin7}
+          ${AndIf} "$AppUserModelID" != ""
+            ApplicationID::Set "$DESKTOP\${BrandShortName}.lnk" "$AppUserModelID" "true"
+          ${EndIf}
+        ${EndIf}
+      ${EndUnless}
+    ${EndIf}
+  ${EndUnless}
+
+  SetShellVarContext all  ; Set $SMPROGRAMS to All Users
+  ${Unless} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+    CreateShortCut "$SMPROGRAMS\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+    ${If} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+      ShellLink::SetShortCutWorkingDirectory "$SMPROGRAMS\${BrandShortName}.lnk" \
+                                             "$INSTDIR"
+      ${If} ${AtLeastWin7}
+      ${AndIf} "$AppUserModelID" != ""
+        ApplicationID::Set "$SMPROGRAMS\${BrandShortName}.lnk" "$AppUserModelID" "true"
+      ${EndIf}
+    ${Else}
+      SetShellVarContext current  ; Set $SMPROGRAMS to the current user's Start
+                                  ; Menu Programs directory
+      ${Unless} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+        CreateShortCut "$SMPROGRAMS\${BrandShortName}.lnk" "$INSTDIR\${FileMainEXE}"
+        ${If} ${FileExists} "$SMPROGRAMS\${BrandShortName}.lnk"
+          ShellLink::SetShortCutWorkingDirectory "$SMPROGRAMS\${BrandShortName}.lnk" \
+                                                 "$INSTDIR"
+          ${If} ${AtLeastWin7}
+          ${AndIf} "$AppUserModelID" != ""
+            ApplicationID::Set "$SMPROGRAMS\${BrandShortName}.lnk" "$AppUserModelID" "true"
+          ${EndIf}
+        ${EndIf}
+      ${EndUnless}
+    ${EndIf}
+  ${EndUnless}
+
+  ; Windows 7 doesn't use the QuickLaunch directory
+  ${Unless} ${AtLeastWin7}
+  ${AndUnless} ${FileExists} "$QUICKLAUNCH\${BrandShortName}.lnk"
+    CreateShortCut "$QUICKLAUNCH\${BrandShortName}.lnk" \
+                   "$INSTDIR\${FileMainEXE}"
+    ${If} ${FileExists} "$QUICKLAUNCH\${BrandShortName}.lnk"
+      ShellLink::SetShortCutWorkingDirectory "$QUICKLAUNCH\${BrandShortName}.lnk" \
+                                             "$INSTDIR"
+    ${EndIf}
+  ${EndUnless}
+!macroend
+!define ShowShortcuts "!insertmacro ShowShortcuts"
+
+; Update the branding name on all shortcuts our installer created
+; to convert from BrandFullName (which is what we used to name shortcuts)
+; to BrandShortName (which is what we now name shortcuts). We only rename
+; desktop and start menu shortcuts, because touching taskbar pins often
+; (but inconsistently) triggers various broken behaviors in the shell.
+; This assumes SHCTX is set correctly.
+!macro UpdateShortcutsBranding
+  ${UpdateOneShortcutBranding} "STARTMENU" "$SMPROGRAMS"
+  ${UpdateOneShortcutBranding} "DESKTOP" "$DESKTOP"
+!macroend
+!define UpdateShortcutsBranding "!insertmacro UpdateShortcutsBranding"
+
+!macro UpdateOneShortcutBranding LOG_SECTION SHORTCUT_DIR
+  ; Only try to rename the shortcuts found in the shortcuts log, to avoid
+  ; blowing away a name that the user created.
+  ${GetLongPath} "$INSTDIR\uninstall\${SHORTCUTS_LOG}" $R9
+  ${If} ${FileExists} "$R9"
+    ClearErrors
+    ; The shortcuts log contains a numbered list of entries for each section,
+    ; but we never actually create more than one.
+    ReadINIStr $R8 "$R9" "${LOG_SECTION}" "Shortcut0"
+    ${IfNot} ${Errors}
+      ${If} ${FileExists} "${SHORTCUT_DIR}\$R8"
+        ShellLink::GetShortCutTarget "${SHORTCUT_DIR}\$R8"
+        Pop $R7
+        ${GetLongPath} "$R7" $R7
+        ${If} $R7 == "$INSTDIR\${FileMainEXE}"
+        ${AndIf} $R8 != "${BrandShortName}.lnk"
+        ${AndIfNot} ${FileExists} "${SHORTCUT_DIR}\${BrandShortName}.lnk"
+          ClearErrors
+          Rename "${SHORTCUT_DIR}\$R8" "${SHORTCUT_DIR}\${BrandShortName}.lnk"
+          ${IfNot} ${Errors}
+            ; Update the shortcut log manually instead of calling LogShortcut
+            ; because it would add a Shortcut1 entry, and we really do want to
+            ; overwrite the existing entry 0, since we just renamed the file.
+            WriteINIStr "$R9" "${LOG_SECTION}" "Shortcut0" \
+                        "${BrandShortName}.lnk"
+          ${EndIf}
+        ${EndIf}
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define UpdateOneShortcutBranding "!insertmacro UpdateOneShortcutBranding"
+
+; Remove a shortcut unintentionally added by the default browser agent (bug 1672957, 1681207)
+!macro RemoveDefaultBrowserAgentShortcut
+  Push $0
+  Push $1
+  Push $2
+  Push $3
+
+  ; Get the current user's Start Menu Programs.
+  ${GetProgramsFolder} $1
+
+  ; The shortcut would have been named MOZ_BASE_NAME regardless of branding.
+  ; According to defines.nsi.in AppName should match application.ini, and application.ini.in sets
+  ; [App] Name from MOZ_BASE_NAME.
+  StrCpy $1 "$1\${AppName}.lnk"
+  ShellLink::GetShortCutTarget $1
+  Pop $0
+
+  ; ShellLink::GetShortCutTarget, and the underlying IShellLink::GetPath(), have an issue
+  ; where "C:\Program Files" becomes "C:\Program Files (x86)" in some cases.
+  ; It should be OK to remove the shortcut (which matches our app name) even if it isn't from this
+  ; install, as long as the file name portion of the target path matches.
+  StrCpy $2 "\default-browser-agent.exe"
+  StrLen $3 $2
+  ; Select the substring to match from the end of the target path.
+  StrCpy $0 $0 $3 -$3
+  ${If} $0 == $2
+    Delete $1
+  ${EndIf}
+
+  Pop $3
+  Pop $2
+  Pop $1
+  Pop $0
+!macroend
+!define RemoveDefaultBrowserAgentShortcut "!insertmacro RemoveDefaultBrowserAgentShortcut"
+
+!macro AddAssociationIfNoneExist FILE_TYPE KEY
+  ClearErrors
+  EnumRegKey $7 HKCR "${FILE_TYPE}" 0
+  ${If} ${Errors}
+    WriteRegStr SHCTX "SOFTWARE\Classes\${FILE_TYPE}"  "" ${KEY}
+  ${EndIf}
+  WriteRegStr SHCTX "SOFTWARE\Classes\${FILE_TYPE}\OpenWithProgids" ${KEY} ""
+!macroend
+!define AddAssociationIfNoneExist "!insertmacro AddAssociationIfNoneExist"
+
+; Adds the protocol and file handler registry entries for making Firefox the
+; default handler (uses SHCTX).
+!macro SetHandlers
+  ${GetLongPath} "$INSTDIR\${FileMainEXE}" $8
+
+  ; See if we're using path hash suffixed registry keys for this install.
+  StrCpy $5 ""
+  ${StrFilter} "${FileMainEXE}" "+" "" "" $2
+  ReadRegStr $0 SHCTX "Software\Clients\StartMenuInternet\$2\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 != $8
+    StrCpy $5 "-$AppUserModelID"
+  ${EndIf}
+
+  StrCpy $0 "SOFTWARE\Classes"
+  StrCpy $2 "$\"$8$\" -osint -url $\"%1$\""
+
+  ; Associate the file handlers with FirefoxHTML, if they aren't already.
+  ReadRegStr $6 SHCTX "$0\.htm" ""
+  ${WordFind} "$6" "-" "+1{" $6
+  ${If} "$6" != "FirefoxHTML"
+    WriteRegStr SHCTX "$0\.htm"   "" "FirefoxHTML$5"
+  ${EndIf}
+
+  ReadRegStr $6 SHCTX "$0\.html" ""
+  ${WordFind} "$6" "-" "+1{" $6
+  ${If} "$6" != "FirefoxHTML"
+    WriteRegStr SHCTX "$0\.html"  "" "FirefoxHTML$5"
+  ${EndIf}
+
+  ReadRegStr $6 SHCTX "$0\.shtml" ""
+  ${WordFind} "$6" "-" "+1{" $6
+  ${If} "$6" != "FirefoxHTML"
+    WriteRegStr SHCTX "$0\.shtml" "" "FirefoxHTML$5"
+  ${EndIf}
+
+  ReadRegStr $6 SHCTX "$0\.xht" ""
+  ${WordFind} "$6" "-" "+1{" $6
+  ${If} "$6" != "FirefoxHTML"
+    WriteRegStr SHCTX "$0\.xht"   "" "FirefoxHTML$5"
+  ${EndIf}
+
+  ReadRegStr $6 SHCTX "$0\.xhtml" ""
+  ${WordFind} "$6" "-" "+1{" $6
+  ${If} "$6" != "FirefoxHTML"
+    WriteRegStr SHCTX "$0\.xhtml" "" "FirefoxHTML$5"
+  ${EndIf}
+
+
+  ; Keep this list synchronized with
+  ; https://searchfox.org/mozilla-central/source/browser/installer/windows/msix/AppxManifest.xml.in.
+  ; and `os.environment.launched_to_handle` and `os.environment.invoked_to_handle` telemetry in
+  ; https://searchfox.org/mozilla-central/source/browser/components/BrowserContentHandler.sys.mjs.
+  ${AddAssociationIfNoneExist} ".oga" "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".ogg" "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".ogv" "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".webm" "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".svg" "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".webp"  "FirefoxHTML$5"
+  ${AddAssociationIfNoneExist} ".avif" "FirefoxHTML$5"
+
+  ${AddAssociationIfNoneExist} ".pdf" "FirefoxPDF$5"
+
+  ; An empty string is used for the 5th param because FirefoxHTML- is not a
+  ; protocol handler.  Ditto for FirefoxPDF-.
+  ${AddDisabledDDEHandlerValues} "FirefoxHTML$5" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                 "${AppRegName} HTML Document" ""
+
+  ${AddDisabledDDEHandlerValues} "FirefoxPDF$5" "$2" "$8,${IDI_DOCUMENT_PDF_ZERO_BASED}" \
+                                 "${AppRegName} PDF Document" ""
+
+  ${AddDisabledDDEHandlerValues} "FirefoxURL$5" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "${AppRegName} URL" \
+                                 "true"
+  ; An empty string is used for the 4th & 5th params because the following
+  ; protocol handlers already have a display name and the additional keys
+  ; required for a protocol handler.
+  ${AddDisabledDDEHandlerValues} "http" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+  ${AddDisabledDDEHandlerValues} "https" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+  ${AddDisabledDDEHandlerValues} "mailto" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+!macroend
+!define SetHandlers "!insertmacro SetHandlers"
+
+!macro WriteApplicationsSupportedType RegKey Type
+  WriteRegStr ${RegKey} "Software\Classes\Applications\${FileMainEXE}\SupportedTypes" "${Type}" ""
+!macroend
+!define WriteApplicationsSupportedType "!insertmacro WriteApplicationsSupportedType"
+
+; Adds the HKLM\Software\Clients\StartMenuInternet\Firefox-[pathhash] registry
+; entries (does not use SHCTX).
+;
+; The values for StartMenuInternet are only valid under HKLM and there can only
+; be one installation registerred under StartMenuInternet per application since
+; the key name is derived from the main application executable.
+;
+; In Windows 8 this changes slightly, you can store StartMenuInternet entries in
+; HKCU.  The icon in start menu for StartMenuInternet is deprecated as of Win7,
+; but the subkeys are what's important.  Control panel default programs looks
+; for them only in HKLM pre win8.
+;
+; The StartMenuInternet key and friends are documented at
+; https://msdn.microsoft.com/en-us/library/windows/desktop/cc144109(v=vs.85).aspx
+;
+; This function also writes our RegisteredApplications entry, which gets us
+; listed in the Settings app's default browser options on Windows 8+, and in
+; Set Program Access and Defaults on earlier versions.
+!macro SetStartMenuInternet RegKey
+  ${GetLongPath} "$INSTDIR\${FileMainEXE}" $8
+  ${GetLongPath} "$INSTDIR\uninstall\helper.exe" $7
+
+  ; If we already have keys at the old FIREFOX.EXE path, then just update those.
+  ; We have to be careful to update the existing keys in place so that we don't
+  ; create duplicate keys for the same installation, or cause Windows to think
+  ; something "suspicious" has happened and it should reset the default browser.
+  ${StrFilter} "${FileMainEXE}" "+" "" "" $1
+  ReadRegStr $0 ${RegKey} "Software\Clients\StartMenuInternet\$1\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 != $8
+    StrCpy $1 "${AppRegName}-$AppUserModelID"
+    StrCpy $2 "-$AppUserModelID"
+  ${Else}
+    StrCpy $2 ""
+  ${EndIf}
+  StrCpy $0 "Software\Clients\StartMenuInternet\$1"
+
+  WriteRegStr ${RegKey} "$0" "" "${BrandFullName}"
+
+  WriteRegStr ${RegKey} "$0\DefaultIcon" "" "$8,${IDI_APPICON_ZERO_BASED}"
+
+  ; The Reinstall Command is defined at
+  ; http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/programmersguide/shell_adv/registeringapps.asp
+  WriteRegStr ${RegKey} "$0\InstallInfo" "HideIconsCommand" "$\"$7$\" /HideShortcuts"
+  WriteRegStr ${RegKey} "$0\InstallInfo" "ShowIconsCommand" "$\"$7$\" /ShowShortcuts"
+  WriteRegStr ${RegKey} "$0\InstallInfo" "ReinstallCommand" "$\"$7$\" /SetAsDefaultAppGlobal"
+  WriteRegDWORD ${RegKey} "$0\InstallInfo" "IconsVisible" 1
+
+  WriteRegStr ${RegKey} "$0\shell\open\command" "" "$\"$8$\""
+
+  WriteRegStr ${RegKey} "$0\shell\properties" "" "$(CONTEXT_OPTIONS)"
+  WriteRegStr ${RegKey} "$0\shell\properties\command" "" "$\"$8$\" -preferences"
+
+  WriteRegStr ${RegKey} "$0\shell\safemode" "" "$(CONTEXT_SAFE_MODE)"
+  WriteRegStr ${RegKey} "$0\shell\safemode\command" "" "$\"$8$\" -safe-mode"
+
+  ; Capabilities registry keys
+  WriteRegStr ${RegKey} "$0\Capabilities" "ApplicationDescription" "$(REG_APP_DESC)"
+  WriteRegStr ${RegKey} "$0\Capabilities" "ApplicationIcon" "$8,${IDI_APPICON_ZERO_BASED}"
+  WriteRegStr ${RegKey} "$0\Capabilities" "ApplicationName" "${BrandShortName}"
+
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".htm"   "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".html"  "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".shtml" "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".xht"   "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".xhtml" "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".svg"   "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".webp"  "FirefoxHTML$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".avif"  "FirefoxHTML$2"
+
+  WriteRegStr ${RegKey} "$0\Capabilities\FileAssociations" ".pdf"   "FirefoxPDF$2"
+
+  WriteRegStr ${RegKey} "$0\Capabilities\StartMenu" "StartMenuInternet" "$1"
+
+  ; In the past, we supported ftp.  Since we don't delete and re-create the
+  ; entire key, we need to remove any existing registration.
+  DeleteRegValue ${RegKey} "$0\Capabilities\URLAssociations" "ftp"
+
+  WriteRegStr ${RegKey} "$0\Capabilities\URLAssociations" "http"   "FirefoxURL$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\URLAssociations" "https"  "FirefoxURL$2"
+  WriteRegStr ${RegKey} "$0\Capabilities\URLAssociations" "mailto" "FirefoxURL$2"
+
+  WriteRegStr ${RegKey} "Software\RegisteredApplications" "$1" "$0\Capabilities"
+
+  ; This key would be created by the Open With dialog when a user creates an
+  ; association for us with a file type that we haven't registered as a handler
+  ; for. We need to preemptively create it ourselves so that we can control the
+  ; command line that's used to launch us in that situation. If it's too late
+  ; and one already exists, then we need to edit its command line to make sure
+  ; it contains the -osint flag.
+  ReadRegStr $6 ${RegKey} "Software\Classes\Applications\${FileMainEXE}\shell\open\command" ""
+  ${If} $6 != ""
+    ${GetPathFromString} "$6" $6
+    WriteRegStr ${RegKey} "Software\Classes\Applications\${FileMainEXE}\shell\open\command" \
+                "" "$\"$6$\" -osint -url $\"%1$\""
+  ${Else}
+    WriteRegStr ${RegKey} "Software\Classes\Applications\${FileMainEXE}\shell\open\command" \
+                "" "$\"$8$\" -osint -url $\"%1$\""
+    ; Make sure files associated this way use the document icon instead of the
+    ; application icon.
+    WriteRegStr ${RegKey} "Software\Classes\Applications\${FileMainEXE}\DefaultIcon" \
+                "" "$8,${IDI_DOCUMENT_ZERO_BASED}"
+    ; If we're going to create this key at all, we also need to list our supported
+    ; file types in it, because otherwise we'll be shown as a suggestion for every
+    ; single file type, whether we support it in any way or not.
+    ; We take a more expansive approach to the set of file types registered
+    ; here compared to elsewhere because this key is interpreted by the OS as
+    ; containing every file type that we can possibly open, so if something
+    ; isn't listed it assumes we can't open it and hides us from e.g. the Open
+    ; With context menu, even if the user has tried to add us there manually.
+    ; The list here was derived from the file /layout/build/components.conf,
+    ; filtered down to only those types which make sense to open on their own
+    ; in Firefox, basically meaning that plain text file types were left out,
+    ; but not JSON or XML types because we have specific viewers for those.
+    ${WriteApplicationsSupportedType} ${RegKey} ".apng"
+    ${WriteApplicationsSupportedType} ${RegKey} ".bmp"
+    ${WriteApplicationsSupportedType} ${RegKey} ".flac"
+    ${WriteApplicationsSupportedType} ${RegKey} ".gif"
+    ${WriteApplicationsSupportedType} ${RegKey} ".htm"
+    ${WriteApplicationsSupportedType} ${RegKey} ".html"
+    ${WriteApplicationsSupportedType} ${RegKey} ".ico"
+    ${WriteApplicationsSupportedType} ${RegKey} ".jfif"
+    ${WriteApplicationsSupportedType} ${RegKey} ".jpeg"
+    ${WriteApplicationsSupportedType} ${RegKey} ".jpg"
+    ${WriteApplicationsSupportedType} ${RegKey} ".json"
+    ${WriteApplicationsSupportedType} ${RegKey} ".m4a"
+    ${WriteApplicationsSupportedType} ${RegKey} ".mp3"
+    ${WriteApplicationsSupportedType} ${RegKey} ".oga"
+    ${WriteApplicationsSupportedType} ${RegKey} ".ogg"
+    ${WriteApplicationsSupportedType} ${RegKey} ".ogv"
+    ${WriteApplicationsSupportedType} ${RegKey} ".opus"
+    ${WriteApplicationsSupportedType} ${RegKey} ".pdf"
+    ${WriteApplicationsSupportedType} ${RegKey} ".pjpeg"
+    ${WriteApplicationsSupportedType} ${RegKey} ".pjp"
+    ${WriteApplicationsSupportedType} ${RegKey} ".png"
+    ${WriteApplicationsSupportedType} ${RegKey} ".rdf"
+    ${WriteApplicationsSupportedType} ${RegKey} ".shtml"
+    ${WriteApplicationsSupportedType} ${RegKey} ".svg"
+    ${WriteApplicationsSupportedType} ${RegKey} ".webm"
+    ${WriteApplicationsSupportedType} ${RegKey} ".webp"
+    ${WriteApplicationsSupportedType} ${RegKey} ".avif"
+    ${WriteApplicationsSupportedType} ${RegKey} ".xht"
+    ${WriteApplicationsSupportedType} ${RegKey} ".xhtml"
+    ${WriteApplicationsSupportedType} ${RegKey} ".xml"
+  ${EndIf}
+!macroend
+!define SetStartMenuInternet "!insertmacro SetStartMenuInternet"
+
+; Add registry keys to support the Firefox 32 bit to 64 bit migration. These
+; registry entries are not removed on uninstall at this time. After the Firefox
+; 32 bit to 64 bit migration effort is completed these registry entries can be
+; removed during install, post update, and uninstall.
+!macro Set32to64DidMigrateReg
+  ${GetLongPath} "$INSTDIR" $1
+  ; These registry keys are always in the 32 bit hive since they are never
+  ; needed by a Firefox 64 bit install unless it has been updated from Firefox
+  ; 32 bit.
+  SetRegView 32
+
+!ifdef HAVE_64BIT_BUILD
+
+  ; Running Firefox 64 bit on Windows 64 bit
+  ClearErrors
+  ReadRegDWORD $2 HKLM "Software\Mozilla\${AppName}\32to64DidMigrate" "$1"
+  ; If there were no errors then the system was updated from Firefox 32 bit to
+  ; Firefox 64 bit and if the value is already 1 then the registry value has
+  ; already been updated in the HKLM registry.
+  ${IfNot} ${Errors}
+  ${AndIf} $2 != 1
+    ClearErrors
+    WriteRegDWORD HKLM "Software\Mozilla\${AppName}\32to64DidMigrate" "$1" 1
+    ${If} ${Errors}
+      ; There was an error writing to HKLM so just write it to HKCU
+      WriteRegDWORD HKCU "Software\Mozilla\${AppName}\32to64DidMigrate" "$1" 1
+    ${Else}
+      ; This will delete the value from HKCU if it exists
+      DeleteRegValue HKCU "Software\Mozilla\${AppName}\32to64DidMigrate" "$1"
+    ${EndIf}
+  ${EndIf}
+
+  ClearErrors
+  ReadRegDWORD $2 HKCU "Software\Mozilla\${AppName}\32to64DidMigrate" "$1"
+  ; If there were no errors then the system was updated from Firefox 32 bit to
+  ; Firefox 64 bit and if the value is already 1 then the registry value has
+  ; already been updated in the HKCU registry.
+  ${IfNot} ${Errors}
+  ${AndIf} $2 != 1
+    WriteRegDWORD HKCU "Software\Mozilla\${AppName}\32to64DidMigrate" "$1" 1
+  ${EndIf}
+
+!else
+
+  ; Running Firefox 32 bit
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    ; Running Firefox 32 bit on a Windows 64 bit system
+    ClearErrors
+    ReadRegDWORD $2 HKLM "Software\Mozilla\${AppName}\32to64DidMigrate" "$1"
+    ; If there were errors the value doesn't exist yet.
+    ${If} ${Errors}
+      ClearErrors
+      WriteRegDWORD HKLM "Software\Mozilla\${AppName}\32to64DidMigrate" "$1" 0
+      ; If there were errors write the value in HKCU.
+      ${If} ${Errors}
+        WriteRegDWORD HKCU "Software\Mozilla\${AppName}\32to64DidMigrate" "$1" 0
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+!endif
+
+  ClearErrors
+  SetRegView lastused
+!macroend
+!define Set32to64DidMigrateReg "!insertmacro Set32to64DidMigrateReg"
+
+; The IconHandler reference for FirefoxHTML can end up in an inconsistent state
+; due to changes not being detected by the IconHandler for side by side
+; installs (see bug 268512). The symptoms can be either an incorrect icon or no
+; icon being displayed for files associated with Firefox (does not use SHCTX).
+!macro FixShellIconHandler RegKey
+  ; Find the correct key to update, either FirefoxHTML or FirefoxHTML-[PathHash]
+  StrCpy $3 "FirefoxHTML-$AppUserModelID"
+  ClearErrors
+  ReadRegStr $0 ${RegKey} "Software\Classes\$3\DefaultIcon" ""
+  ${If} ${Errors}
+    StrCpy $3 "FirefoxHTML"
+  ${EndIf}
+
+  ClearErrors
+  ReadRegStr $1 ${RegKey} "Software\Classes\$3\ShellEx\IconHandler" ""
+  ${Unless} ${Errors}
+    ReadRegStr $1 ${RegKey} "Software\Classes\$3\DefaultIcon" ""
+    ${GetLongPath} "$INSTDIR\${FileMainEXE}" $2
+    ${If} "$1" != "$2,${IDI_DOCUMENT_ZERO_BASED}"
+      WriteRegStr ${RegKey} "Software\Classes\$3\DefaultIcon" "" "$2,${IDI_DOCUMENT_ZERO_BASED}"
+    ${EndIf}
+  ${EndUnless}
+!macroend
+!define FixShellIconHandler "!insertmacro FixShellIconHandler"
+
+; Add Software\Mozilla\ registry entries (uses SHCTX).
+!macro SetAppKeys
+  ; Check if this is an ESR release and if so add registry values so it is
+  ; possible to determine that this is an ESR install (bug 726781).
+  ClearErrors
+  ${WordFind} "${UpdateChannel}" "esr" "E#" $3
+  ${If} ${Errors}
+    StrCpy $3 ""
+  ${Else}
+    StrCpy $3 " ESR"
+  ${EndIf}
+
+  ${GetLongPath} "$INSTDIR" $8
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal}\${AppVersion}$3 (${ARCH} ${AB_CD})\Main"
+  ${WriteRegStr2} $TmpVal "$0" "Install Directory" "$8" 0
+  ${WriteRegStr2} $TmpVal "$0" "PathToExe" "$8\${FileMainEXE}" 0
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal}\${AppVersion}$3 (${ARCH} ${AB_CD})\Uninstall"
+  ${WriteRegStr2} $TmpVal "$0" "Description" "${BrandFullNameInternal} ${AppVersion}$3 (${ARCH} ${AB_CD})" 0
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal}\${AppVersion}$3 (${ARCH} ${AB_CD})"
+  ${WriteRegStr2} $TmpVal  "$0" "" "${AppVersion}$3 (${ARCH} ${AB_CD})" 0
+  ${If} "$3" == ""
+    DeleteRegValue SHCTX "$0" "ESR"
+  ${Else}
+    ${WriteRegDWORD2} $TmpVal "$0" "ESR" 1 0
+  ${EndIf}
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal} ${AppVersion}$3\bin"
+  ${WriteRegStr2} $TmpVal "$0" "PathToExe" "$8\${FileMainEXE}" 0
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal} ${AppVersion}$3\extensions"
+  ${WriteRegStr2} $TmpVal "$0" "Components" "$8\components" 0
+  ${WriteRegStr2} $TmpVal "$0" "Plugins" "$8\plugins" 0
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal} ${AppVersion}$3"
+  ${WriteRegStr2} $TmpVal "$0" "GeckoVer" "${GREVersion}" 0
+  ${If} "$3" == ""
+    DeleteRegValue SHCTX "$0" "ESR"
+  ${Else}
+    ${WriteRegDWORD2} $TmpVal "$0" "ESR" 1 0
+  ${EndIf}
+
+  StrCpy $0 "Software\Mozilla\${BrandFullNameInternal}$3"
+  ${WriteRegStr2} $TmpVal "$0" "" "${GREVersion}" 0
+  ${WriteRegStr2} $TmpVal "$0" "CurrentVersion" "${AppVersion}$3 (${ARCH} ${AB_CD})" 0
+!macroend
+!define SetAppKeys "!insertmacro SetAppKeys"
+
+; Add uninstall registry entries. This macro tests for write access to determine
+; if the uninstall keys should be added to HKLM or HKCU.
+!macro SetUninstallKeys
+  ; Check if this is an ESR release and if so add registry values so it is
+  ; possible to determine that this is an ESR install (bug 726781).
+  ClearErrors
+  ${WordFind} "${UpdateChannel}" "esr" "E#" $3
+  ${If} ${Errors}
+    StrCpy $3 ""
+  ${Else}
+    StrCpy $3 " ESR"
+  ${EndIf}
+
+  StrCpy $0 "Software\Microsoft\Windows\CurrentVersion\Uninstall\${BrandFullNameInternal} ${AppVersion}$3 (${ARCH} ${AB_CD})"
+
+  StrCpy $2 ""
+  ClearErrors
+  WriteRegStr HKLM "$0" "${BrandShortName}InstallerTest" "Write Test"
+  ${If} ${Errors}
+    ; If the uninstall keys already exist in HKLM don't create them in HKCU
+    ClearErrors
+    ReadRegStr $2 "HKLM" $0 "DisplayName"
+    ${If} $2 == ""
+      ; Otherwise we don't have any keys for this product in HKLM so proceeed
+      ; to create them in HKCU.  Better handling for this will be done in:
+      ; Bug 711044 - Better handling for 2 uninstall icons
+      StrCpy $1 "HKCU"
+      SetShellVarContext current  ; Set SHCTX to the current user (e.g. HKCU)
+    ${EndIf}
+    ClearErrors
+  ${Else}
+    StrCpy $1 "HKLM"
+    SetShellVarContext all     ; Set SHCTX to all users (e.g. HKLM)
+    DeleteRegValue HKLM "$0" "${BrandShortName}InstallerTest"
+  ${EndIf}
+
+  ${If} $2 == ""
+    ${GetLongPath} "$INSTDIR" $8
+
+    ; Write the uninstall registry keys
+    ${WriteRegStr2} $1 "$0" "Comments" "${BrandFullNameInternal} ${AppVersion}$3 (${ARCH} ${AB_CD})" 0
+    ${WriteRegStr2} $1 "$0" "DisplayIcon" "$8\${FileMainEXE},${IDI_APPICON_ZERO_BASED}" 0
+    ${WriteRegStr2} $1 "$0" "DisplayName" "${BrandFullNameInternal}$3 (${ARCH} ${AB_CD})" 0
+    ${WriteRegStr2} $1 "$0" "DisplayVersion" "${AppVersion}" 0
+    ${WriteRegStr2} $1 "$0" "HelpLink" "${HelpLink}" 0
+    ${WriteRegStr2} $1 "$0" "InstallLocation" "$8" 0
+    ${WriteRegStr2} $1 "$0" "Publisher" "Mozilla" 0
+    ${WriteRegStr2} $1 "$0" "UninstallString" "$\"$8\uninstall\helper.exe$\"" 0
+    DeleteRegValue SHCTX "$0" "URLInfoAbout"
+; Don't add URLUpdateInfo which is the release notes url except for the release
+; and esr channels since nightly, aurora, and beta do not have release notes.
+; Note: URLUpdateInfo is only defined in the official branding.nsi.
+!ifdef URLUpdateInfo
+!ifndef BETA_UPDATE_CHANNEL
+    ${WriteRegStr2} $1 "$0" "URLUpdateInfo" "${URLUpdateInfo}" 0
+!endif
+!endif
+    ${WriteRegStr2} $1 "$0" "URLInfoAbout" "${URLInfoAbout}" 0
+    ${WriteRegDWORD2} $1 "$0" "NoModify" 1 0
+    ${WriteRegDWORD2} $1 "$0" "NoRepair" 1 0
+
+    ${GetSize} "$8" "/S=0K" $R2 $R3 $R4
+    ${WriteRegDWORD2} $1 "$0" "EstimatedSize" $R2 0
+
+    ${If} "$TmpVal" == "HKLM"
+      SetShellVarContext all     ; Set SHCTX to all users (e.g. HKLM)
+    ${Else}
+      SetShellVarContext current  ; Set SHCTX to the current user (e.g. HKCU)
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define SetUninstallKeys "!insertmacro SetUninstallKeys"
+
+; Due to a bug when associating some file handlers, only SHCTX was checked for
+; some file types such as ".pdf". SHCTX is set to HKCU or HKLM depending on
+; whether the installer has write access to HKLM. The bug would happen when
+; HCKU was checked and didn't exist since programs aren't required to set the
+; HKCU Software\Classes keys when associating handlers. The fix uses the merged
+; view in HKCR to check for existance of an existing association. This macro
+; cleans affected installations by removing the HKLM and HKCU value if it is set
+; to FirefoxHTML when there is a value for PersistentHandler or by removing the
+; HKCU value when the HKLM value has a value other than an empty string.
+!macro FixBadFileAssociation FILE_TYPE
+  ; Only delete the default value in case the key has values for OpenWithList,
+  ; OpenWithProgids, PersistentHandler, etc.
+  ReadRegStr $0 HKCU "Software\Classes\${FILE_TYPE}" ""
+  ${WordFind} "$0" "-" "+1{" $0
+  ReadRegStr $1 HKLM "Software\Classes\${FILE_TYPE}" ""
+  ${WordFind} "$1" "-" "+1{" $1
+  ReadRegStr $2 HKCR "${FILE_TYPE}\PersistentHandler" ""
+  ${If} "$2" != ""
+    ; Since there is a persistent handler remove FirefoxHTML as the default
+    ; value from both HKCU and HKLM if it set to FirefoxHTML.
+    ${If} "$0" == "FirefoxHTML"
+      DeleteRegValue HKCU "Software\Classes\${FILE_TYPE}" ""
+    ${EndIf}
+    ${If} "$1" == "FirefoxHTML"
+      DeleteRegValue HKLM "Software\Classes\${FILE_TYPE}" ""
+    ${EndIf}
+  ${ElseIf} "$0" == "FirefoxHTML"
+    ; Since HKCU is set to FirefoxHTML remove FirefoxHTML as the default value
+    ; from HKCU if HKLM is set to a value other than an empty string.
+    ${If} "$1" != ""
+      DeleteRegValue HKCU "Software\Classes\${FILE_TYPE}" ""
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define FixBadFileAssociation "!insertmacro FixBadFileAssociation"
+
+; Add app specific handler registry entries under Software\Classes if they
+; don't exist (does not use SHCTX).
+!macro FixClassKeys
+  StrCpy $1 "SOFTWARE\Classes"
+
+  ; File handler keys and name value pairs that may need to be created during
+  ; install or upgrade.
+  ReadRegStr $0 HKCR ".shtml" "Content Type"
+  ${If} "$0" == ""
+    StrCpy $0 "$1\.shtml"
+    ${WriteRegStr2} $TmpVal "$1\.shtml" "" "shtmlfile" 0
+    ${WriteRegStr2} $TmpVal "$1\.shtml" "Content Type" "text/html" 0
+    ${WriteRegStr2} $TmpVal "$1\.shtml" "PerceivedType" "text" 0
+  ${EndIf}
+
+  ReadRegStr $0 HKCR ".xht" "Content Type"
+  ${If} "$0" == ""
+    ${WriteRegStr2} $TmpVal "$1\.xht" "" "xhtfile" 0
+    ${WriteRegStr2} $TmpVal "$1\.xht" "Content Type" "application/xhtml+xml" 0
+  ${EndIf}
+
+  ReadRegStr $0 HKCR ".xhtml" "Content Type"
+  ${If} "$0" == ""
+    ${WriteRegStr2} $TmpVal "$1\.xhtml" "" "xhtmlfile" 0
+    ${WriteRegStr2} $TmpVal "$1\.xhtml" "Content Type" "application/xhtml+xml" 0
+  ${EndIf}
+
+  ; Remove possibly badly associated file types
+  ${FixBadFileAssociation} ".pdf"
+  ${FixBadFileAssociation} ".oga"
+  ${FixBadFileAssociation} ".ogg"
+  ${FixBadFileAssociation} ".ogv"
+  ${FixBadFileAssociation} ".pdf"
+  ${FixBadFileAssociation} ".webm"
+!macroend
+!define FixClassKeys "!insertmacro FixClassKeys"
+
+; Updates protocol handlers if their registry open command value is for this
+; install location (uses SHCTX).
+!macro UpdateProtocolHandlers
+  ; Store the command to open the app with an url in a register for easy access.
+  ${GetLongPath} "$INSTDIR\${FileMainEXE}" $8
+  StrCpy $2 "$\"$8$\" -osint -url $\"%1$\""
+
+  ; Only set the file and protocol handlers if the existing one under HKCR is
+  ; for this install location.
+
+  ${IsHandlerForInstallDir} "FirefoxHTML-$AppUserModelID" $R9
+  ${If} "$R9" == "true"
+    ; An empty string is used for the 5th param because FirefoxHTML is not a
+    ; protocol handler.
+    ${AddDisabledDDEHandlerValues} "FirefoxHTML-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                   "${AppRegName} HTML Document" ""
+  ${Else}
+    ${IsHandlerForInstallDir} "FirefoxHTML" $R9
+    ${If} "$R9" == "true"
+      ${AddDisabledDDEHandlerValues} "FirefoxHTML" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                     "${AppRegName} HTML Document" ""
+    ${EndIf}
+  ${EndIf}
+
+  ; FirefoxPDF-* was added after FirefoxHTML and FirefoxURL, so we've never
+  ; supported bare "FirefoxPDF".  But we won't have it from the installer, so we
+  ; add/update it unconditionally.  `PostUpdate` is gated on `uninstall.log`
+  ; being present, so the invocation here will only happen for installed
+  ; directories, not unpackaged directories.
+  ${AddDisabledDDEHandlerValues} "FirefoxPDF-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_PDF_ZERO_BASED}" \
+                                 "${AppRegName} PDF Document" ""
+
+  ${IsHandlerForInstallDir} "FirefoxURL-$AppUserModelID" $R9
+  ${If} "$R9" == "true"
+    ${AddDisabledDDEHandlerValues} "FirefoxURL-$AppUserModelID" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                   "${AppRegName} URL" "true"
+  ${Else}
+    ${IsHandlerForInstallDir} "FirefoxURL" $R9
+    ${If} "$R9" == "true"
+      ${AddDisabledDDEHandlerValues} "FirefoxURL" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" \
+                                     "${AppRegName} URL" "true"
+    ${EndIf}
+  ${EndIf}
+
+  ; An empty string is used for the 4th & 5th params because the following
+  ; protocol handlers already have a display name and the additional keys
+  ; required for a protocol handler.
+
+  ${IsHandlerForInstallDir} "ftp" $R9
+  ${If} "$R9" == "true"
+    ; In the past, we supported ftp, so we need to delete any registration.
+    ${AddDisabledDDEHandlerValues} "ftp" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" "delete"
+  ${EndIf}
+
+  ${IsHandlerForInstallDir} "http" $R9
+  ${If} "$R9" == "true"
+    ${AddDisabledDDEHandlerValues} "http" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+  ${EndIf}
+
+  ${IsHandlerForInstallDir} "https" $R9
+  ${If} "$R9" == "true"
+    ${AddDisabledDDEHandlerValues} "https" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+  ${EndIf}
+
+  ${IsHandlerForInstallDir} "mailto" $R9
+  ${If} "$R9" == "true"
+    ${AddDisabledDDEHandlerValues} "mailto" "$2" "$8,${IDI_DOCUMENT_ZERO_BASED}" "" ""
+  ${EndIf}
+!macroend
+!define UpdateProtocolHandlers "!insertmacro UpdateProtocolHandlers"
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+; Adds maintenance service certificate keys for the install dir.
+; For the cert to work, it must also be signed by a trusted cert for the user.
+!macro AddMaintCertKeys
+  Push $R0
+  ; Allow main Mozilla cert information for updates
+  ; This call will push the needed key on the stack
+  ServicesHelper::PathToUniqueRegistryPath "$INSTDIR"
+  Pop $R0
+  ${If} $R0 != ""
+    ; More than one certificate can be specified in a different subfolder
+    ; for example: $R0\1, but each individual binary can be signed
+    ; with at most one certificate.  A fallback certificate can only be used
+    ; if the binary is replaced with a different certificate.
+    ; We always use the 64bit registry for certs.
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView 64
+    ${EndIf}
+
+    ; PrefetchProcessName was originally used to experiment with deleting
+    ; Windows prefetch as a speed optimization.  It is no longer used though.
+    DeleteRegValue HKLM "$R0" "prefetchProcessName"
+
+    ; Setting the Attempted value will ensure that a new Maintenance Service
+    ; install will never be attempted again after this from updates.  The value
+    ; is used only to see if updates should attempt new service installs.
+    WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Attempted" 1
+
+    ; These values associate the allowed certificates for the current
+    ; installation.
+    WriteRegStr HKLM "$R0\0" "name" "${CERTIFICATE_NAME}"
+    WriteRegStr HKLM "$R0\0" "issuer" "${CERTIFICATE_ISSUER}"
+    ; These values associate the allowed certificates for the previous
+    ;  installation, so that we can update from it cleanly using the
+    ;  old updater.exe (which will still have this signature).
+    WriteRegStr HKLM "$R0\1" "name" "${CERTIFICATE_NAME_PREVIOUS}"
+    WriteRegStr HKLM "$R0\1" "issuer" "${CERTIFICATE_ISSUER_PREVIOUS}"
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView lastused
+    ${EndIf}
+    ClearErrors
+  ${EndIf}
+  ; Restore the previously used value back
+  Pop $R0
+!macroend
+!define AddMaintCertKeys "!insertmacro AddMaintCertKeys"
+!endif
+
+!macro RegisterAccessibleHandler
+  ${RegisterDLL} "$INSTDIR\AccessibleHandler.dll"
+!macroend
+!define RegisterAccessibleHandler "!insertmacro RegisterAccessibleHandler"
+
+!macro RegisterAccessibleMarshal
+  ${RegisterDLL} "$INSTDIR\AccessibleMarshal.dll"
+!macroend
+!define RegisterAccessibleMarshal "!insertmacro RegisterAccessibleMarshal"
+
+; Removes various registry entries for reasons noted below (does not use SHCTX).
+!macro RemoveDeprecatedKeys
+  StrCpy $0 "SOFTWARE\Classes"
+  ; Remove support for launching chrome urls from the shell during install or
+  ; update if the DefaultIcon is from firefox.exe (Bug 301073).
+  ${RegCleanAppHandler} "chrome"
+
+  ; Remove protocol handler registry keys added by the MS shim
+  DeleteRegKey HKLM "Software\Classes\Firefox.URL"
+  DeleteRegKey HKCU "Software\Classes\Firefox.URL"
+!macroend
+!define RemoveDeprecatedKeys "!insertmacro RemoveDeprecatedKeys"
+
+; Removes various directories and files for reasons noted below.
+!macro RemoveDeprecatedFiles
+  ; Remove the toplevel chrome.manifest added by bug 1295542.
+  ${If} ${FileExists} "$INSTDIR\chrome.manifest"
+    Delete "$INSTDIR\chrome.manifest"
+  ${EndIf}
+
+  ; Remove talkback if it is present (remove after bug 386760 is fixed)
+  ${If} ${FileExists} "$INSTDIR\extensions\talkback@mozilla.org"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\talkback@mozilla.org"
+  ${EndIf}
+
+  ; Remove the Java Console extension (bug 1165156)
+  ${If} ${FileExists} "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0031-ABCDEFFEDCBA}"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0031-ABCDEFFEDCBA}"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0034-ABCDEFFEDCBA}"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0034-ABCDEFFEDCBA}"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0039-ABCDEFFEDCBA}"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0039-ABCDEFFEDCBA}"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0045-ABCDEFFEDCBA}"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\{CAFEEFAC-0016-0000-0045-ABCDEFFEDCBA}"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\extensions\{CAFEEFAC-0017-0000-0000-ABCDEFFEDCBA}"
+    RmDir /r /REBOOTOK "$INSTDIR\extensions\{CAFEEFAC-0017-0000-0000-ABCDEFFEDCBA}"
+  ${EndIf}
+!macroend
+!define RemoveDeprecatedFiles "!insertmacro RemoveDeprecatedFiles"
+
+; Converts specific partner distribution.ini from ansi to utf-8 (bug 882989)
+!macro FixDistributionsINI
+  StrCpy $1 "$INSTDIR\distribution\distribution.ini"
+  StrCpy $2 "$INSTDIR\distribution\utf8fix"
+  StrCpy $0 "0" ; Default to not attempting to fix
+
+  ; Check if the distribution.ini settings are for a partner build that needs
+  ; to have its distribution.ini converted from ansi to utf-8.
+  ${If} ${FileExists} "$1"
+    ${Unless} ${FileExists} "$2"
+      ReadINIStr $3 "$1" "Preferences" "app.distributor"
+      ${If} "$3" == "yahoo"
+        ReadINIStr $3 "$1" "Preferences" "app.distributor.channel"
+        ${If} "$3" == "de"
+        ${OrIf} "$3" == "es"
+        ${OrIf} "$3" == "e1"
+        ${OrIf} "$3" == "mx"
+          StrCpy $0 "1"
+        ${EndIf}
+      ${EndIf}
+      ; Create the utf8fix so this only runs once
+      FileOpen $3 "$2" w
+      FileClose $3
+    ${EndUnless}
+  ${EndIf}
+
+  ${If} "$0" == "1"
+    StrCpy $0 "0"
+    ClearErrors
+    ReadINIStr $3 "$1" "Global" "version"
+    ${Unless} ${Errors}
+      StrCpy $4 "$3" 2
+      ${If} "$4" == "1."
+        StrCpy $4 "$3" "" 2 ; Everything after "1."
+        ${If} $4 < 23
+          StrCpy $0 "1"
+        ${EndIf}
+      ${EndIf}
+    ${EndUnless}
+  ${EndIf}
+
+  ${If} "$0" == "1"
+    ClearErrors
+    FileOpen $3 "$1" r
+    ${If} ${Errors}
+      FileClose $3
+    ${Else}
+      StrCpy $2 "$INSTDIR\distribution\distribution.new"
+      ClearErrors
+      FileOpen $4 "$2" w
+      ${If} ${Errors}
+        FileClose $3
+        FileClose $4
+      ${Else}
+        StrCpy $0 "0" ; Default to not replacing the original distribution.ini
+        ${Do}
+          FileReadByte $3 $5
+          ${If} $5 == ""
+            ${Break}
+          ${EndIf}
+          ${If} $5 == 233 ; ansi é
+            StrCpy $0 "1"
+            FileWriteByte $4 195
+            FileWriteByte $4 169
+          ${ElseIf} $5 == 241 ; ansi ñ
+            StrCpy $0 "1"
+            FileWriteByte $4 195
+            FileWriteByte $4 177
+          ${ElseIf} $5 == 252 ; ansi ü
+            StrCpy $0 "1"
+            FileWriteByte $4 195
+            FileWriteByte $4 188
+          ${ElseIf} $5 < 128
+            FileWriteByte $4 $5
+          ${EndIf}
+        ${Loop}
+        FileClose $3
+        FileClose $4
+        ${If} "$0" == "1"
+          ClearErrors
+          Rename "$1" "$1.bak"
+          ${Unless} ${Errors}
+            Rename "$2" "$1"
+            Delete "$1.bak"
+          ${EndUnless}
+        ${Else}
+          Delete "$2"
+        ${EndIf}
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define FixDistributionsINI "!insertmacro FixDistributionsINI"
+
+; For updates, adds a pinned shortcut to Task Bar on update for Windows 7
+; and 8 if this macro has never been called before and the application
+; is default (see PinToTaskBar for more details). This doesn't get called
+; for Windows 10 and 11 on updates, so we will never pin on update there.
+;
+; For installs, adds a taskbar pin if SHOULD_PIN is 1. (Defaults to 1,
+; but is controllable through the UI, ini file, and command line flags.)
+!macro MigrateTaskBarShortcut SHOULD_PIN
+  ${GetShortcutsLogPath} $0
+  ${If} ${FileExists} "$0"
+    ClearErrors
+    ReadINIStr $1 "$0" "TASKBAR" "Migrated"
+    ${If} ${Errors}
+      ClearErrors
+      WriteIniStr "$0" "TASKBAR" "Migrated" "true"
+      WriteRegDWORD HKCU \
+        "Software\Mozilla\${AppName}\Installer\$AppUserModelID" \
+        "WasPinnedToTaskbar" 1
+      ${If} ${AtLeastWin7}
+        ${If} "${SHOULD_PIN}" == "1"
+          ${PinToTaskBar}
+        ${EndIf}
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define MigrateTaskBarShortcut "!insertmacro MigrateTaskBarShortcut"
+
+; Adds a pinned Task Bar shortcut on Windows 7 if there isn't one for the main
+; application executable already. Existing pinned shortcuts for the same
+; application model ID must be removed first to prevent breaking the pinned
+; item's lists but multiple installations with the same application model ID is
+; an edgecase. If removing existing pinned shortcuts with the same application
+; model ID removes a pinned pinned Start Menu shortcut this will also add a
+; pinned Start Menu shortcut.
+!macro PinToTaskBar
+  ${If} ${AtLeastWin7}
+    StrCpy $8 "false" ; Whether a shortcut had to be created
+    ${IsPinnedToTaskBar} "$INSTDIR\${FileMainEXE}" $R9
+    ${If} "$R9" == "false"
+      ; Find an existing Start Menu shortcut or create one to use for pinning
+      ${GetShortcutsLogPath} $0
+      ${If} ${FileExists} "$0"
+        ClearErrors
+        ReadINIStr $1 "$0" "STARTMENU" "Shortcut0"
+        ${Unless} ${Errors}
+          SetShellVarContext all ; Set SHCTX to all users
+          ${Unless} ${FileExists} "$SMPROGRAMS\$1"
+            SetShellVarContext current ; Set SHCTX to the current user
+            ${Unless} ${FileExists} "$SMPROGRAMS\$1"
+              StrCpy $8 "true"
+              CreateShortCut "$SMPROGRAMS\$1" "$INSTDIR\${FileMainEXE}"
+              ${If} ${FileExists} "$SMPROGRAMS\$1"
+                ShellLink::SetShortCutWorkingDirectory "$SMPROGRAMS\$1" \
+                                                       "$INSTDIR"
+                ${If} "$AppUserModelID" != ""
+                  ApplicationID::Set "$SMPROGRAMS\$1" "$AppUserModelID" "true"
+                ${EndIf}
+              ${EndIf}
+            ${EndUnless}
+          ${EndUnless}
+
+          ${If} ${FileExists} "$SMPROGRAMS\$1"
+            ; Count of Start Menu pinned shortcuts before unpinning.
+            ${PinnedToStartMenuLnkCount} $R9
+
+            ; Having multiple shortcuts pointing to different installations with
+            ; the same AppUserModelID (e.g. side by side installations of the
+            ; same version) will make the TaskBar shortcut's lists into an bad
+            ; state where the lists are not shown. To prevent this first
+            ; uninstall the pinned item.
+            ApplicationID::UninstallPinnedItem "$SMPROGRAMS\$1"
+
+            ; Count of Start Menu pinned shortcuts after unpinning.
+            ${PinnedToStartMenuLnkCount} $R8
+
+            ; If there is a change in the number of Start Menu pinned shortcuts
+            ; assume that unpinning unpinned a side by side installation from
+            ; the Start Menu and pin this installation to the Start Menu.
+            ${Unless} $R8 == $R9
+              ; Pin the shortcut to the Start Menu. 5381 is the shell32.dll
+              ; resource id for the "Pin to Start Menu" string.
+              InvokeShellVerb::DoIt "$SMPROGRAMS" "$1" "5381"
+            ${EndUnless}
+
+            ${If} ${AtMostWin2012R2}
+              ; Pin the shortcut to the TaskBar. 5386 is the shell32.dll
+              ; resource id for the "Pin to Taskbar" string.
+              InvokeShellVerb::DoIt "$SMPROGRAMS" "$1" "5386"
+            ${ElseIf} ${AtMostWaaS} 1809
+              ; In Windows 10 the "Pin to Taskbar" resource was removed, so we
+              ; can't access the verb that way anymore. We have a create a
+              ; command key using the GUID that's assigned to this action and
+              ; then invoke that as a verb. This works up until build 1809
+              ReadRegStr $R9 HKLM \
+                "Software\Microsoft\Windows\CurrentVersion\Explorer\CommandStore\shell\Windows.taskbarpin" \
+                "ExplorerCommandHandler"
+              WriteRegStr HKCU "Software\Classes\*\shell\${AppRegName}-$AppUserModelID" "ExplorerCommandHandler" $R9
+              InvokeShellVerb::DoIt "$SMPROGRAMS" "$1" "${AppRegName}-$AppUserModelID"
+              DeleteRegKey HKCU "Software\Classes\*\shell\${AppRegName}-$AppUserModelID"
+            ${Else}
+              ; In the Windows 10 1903 and up (and Windows 11) the above no
+              ; longer works. We have yet another method for these versions
+              ; which is detailed in the PinToTaskbar plugin code.
+              PinToTaskbar::Pin "$SMPROGRAMS\$1"
+            ${EndIf}
+
+            ; Delete the shortcut if it was created
+            ${If} "$8" == "true"
+              Delete "$SMPROGRAMS\$1"
+            ${EndIf}
+          ${EndIf}
+
+          ${If} $TmpVal == "HKCU"
+            SetShellVarContext current ; Set SHCTX to the current user
+          ${Else}
+            SetShellVarContext all ; Set SHCTX to all users
+          ${EndIf}
+        ${EndUnless}
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+!macroend
+!define PinToTaskBar "!insertmacro PinToTaskBar"
+
+; Removes the application's start menu directory along with its shortcuts if
+; they exist and if they exist creates a start menu shortcut in the root of the
+; start menu directory (bug 598779). If the application's start menu directory
+; is not empty after removing the shortucts the directory will not be removed
+; since these additional items were not created by the installer (uses SHCTX).
+!macro RemoveStartMenuDir
+  ${GetShortcutsLogPath} $0
+  ${If} ${FileExists} "$0"
+    ; Delete Start Menu Programs shortcuts, directory if it is empty, and
+    ; parent directories if they are empty up to but not including the start
+    ; menu directory.
+    ${GetLongPath} "$SMPROGRAMS" $1
+    ClearErrors
+    ReadINIStr $2 "$0" "SMPROGRAMS" "RelativePathToDir"
+    ${Unless} ${Errors}
+      ${GetLongPath} "$1\$2" $2
+      ${If} "$2" != ""
+        ; Delete shortucts in the Start Menu Programs directory.
+        StrCpy $3 0
+        ${Do}
+          ClearErrors
+          ReadINIStr $4 "$0" "SMPROGRAMS" "Shortcut$3"
+          ; Stop if there are no more entries
+          ${If} ${Errors}
+            ${ExitDo}
+          ${EndIf}
+          ${If} ${FileExists} "$2\$4"
+            ShellLink::GetShortCutTarget "$2\$4"
+            Pop $5
+            ${If} "$INSTDIR\${FileMainEXE}" == "$5"
+              Delete "$2\$4"
+            ${EndIf}
+          ${EndIf}
+          IntOp $3 $3 + 1 ; Increment the counter
+        ${Loop}
+        ; Delete Start Menu Programs directory and parent directories
+        ${Do}
+          ; Stop if the current directory is the start menu directory
+          ${If} "$1" == "$2"
+            ${ExitDo}
+          ${EndIf}
+          ClearErrors
+          RmDir "$2"
+          ; Stop if removing the directory failed
+          ${If} ${Errors}
+            ${ExitDo}
+          ${EndIf}
+          ${GetParent} "$2" $2
+        ${Loop}
+      ${EndIf}
+      DeleteINISec "$0" "SMPROGRAMS"
+    ${EndUnless}
+  ${EndIf}
+!macroend
+!define RemoveStartMenuDir "!insertmacro RemoveStartMenuDir"
+
+; Creates the shortcuts log ini file with the appropriate entries if it doesn't
+; already exist.
+!macro CreateShortcutsLog
+  ${GetShortcutsLogPath} $0
+  ${Unless} ${FileExists} "$0"
+    ${LogStartMenuShortcut} "${BrandShortName}.lnk"
+    ${LogQuickLaunchShortcut} "${BrandShortName}.lnk"
+    ${LogDesktopShortcut} "${BrandShortName}.lnk"
+  ${EndUnless}
+!macroend
+!define CreateShortcutsLog "!insertmacro CreateShortcutsLog"
+
+; The files to check if they are in use during (un)install so the restart is
+; required message is displayed. All files must be located in the $INSTDIR
+; directory.
+!macro PushFilesToCheck
+  ; The first string to be pushed onto the stack MUST be "end" to indicate
+  ; that there are no more files to check in $INSTDIR and the last string
+  ; should be ${FileMainEXE} so if it is in use the CheckForFilesInUse macro
+  ; returns after the first check.
+  Push "end"
+  Push "AccessibleHandler.dll"
+  Push "AccessibleMarshal.dll"
+  Push "IA2Marshal.dll"
+  Push "freebl3.dll"
+  Push "nssckbi.dll"
+  Push "nspr4.dll"
+  Push "nssdbm3.dll"
+  Push "mozsqlite3.dll"
+  Push "xpcom.dll"
+  Push "crashreporter.exe"
+  Push "default-browser-agent.exe"
+  Push "minidump-analyzer.exe"
+  Push "pingsender.exe"
+  Push "updater.exe"
+  Push "mozwer.dll"
+  Push "${FileMainEXE}"
+!macroend
+!define PushFilesToCheck "!insertmacro PushFilesToCheck"
+
+
+; Pushes the string "true" to the top of the stack if the Firewall service is
+; running and pushes the string "false" to the top of the stack if it isn't.
+!define SC_MANAGER_ALL_ACCESS 0x3F
+!define SERVICE_QUERY_CONFIG 0x0001
+!define SERVICE_QUERY_STATUS 0x0004
+!define SERVICE_RUNNING 0x4
+
+!macro IsFirewallSvcRunning
+  Push $R9
+  Push $R8
+  Push $R7
+  Push $R6
+  Push "false"
+
+  System::Call 'advapi32::OpenSCManagerW(n, n, i ${SC_MANAGER_ALL_ACCESS}) i.R6'
+  ${If} $R6 != 0
+    ; MpsSvc is the Firewall service.
+    ; When opening the service with SERVICE_QUERY_CONFIG the return value will
+    ; be 0 if the service is not installed.
+    System::Call 'advapi32::OpenServiceW(i R6, t "MpsSvc", i ${SERVICE_QUERY_CONFIG}) i.R7'
+    ${If} $R7 != 0
+      System::Call 'advapi32::CloseServiceHandle(i R7) n'
+      ; Open the service with SERVICE_QUERY_STATUS so its status can be queried.
+      System::Call 'advapi32::OpenServiceW(i R6, t "MpsSvc", i ${SERVICE_QUERY_STATUS}) i.R7'
+    ${EndIf}
+    ; Did the calls to OpenServiceW succeed?
+    ${If} $R7 != 0
+      System::Call '*(i,i,i,i,i,i,i) i.R9'
+      ; Query the current status of the service.
+      System::Call 'advapi32::QueryServiceStatus(i R7, i $R9) i'
+      System::Call '*$R9(i, i.R8)'
+      System::Free $R9
+      System::Call 'advapi32::CloseServiceHandle(i R7) n'
+      IntFmt $R8 "0x%X" $R8
+      ${If} $R8 == ${SERVICE_RUNNING}
+        Pop $R9
+        Push "true"
+      ${EndIf}
+    ${EndIf}
+    System::Call 'advapi32::CloseServiceHandle(i R6) n'
+  ${EndIf}
+
+  Exch 1
+  Pop $R6
+  Exch 1
+  Pop $R7
+  Exch 1
+  Pop $R8
+  Exch 1
+  Pop $R9
+!macroend
+!define IsFirewallSvcRunning "!insertmacro IsFirewallSvcRunning"
+!define un.IsFirewallSvcRunning "!insertmacro IsFirewallSvcRunning"
+
+; Sets this installation as the default browser by setting the registry keys
+; under HKEY_CURRENT_USER via registry calls and using the AppAssocReg NSIS
+; plugin. This is a function instead of a macro so it is
+; easily called from an elevated instance of the binary. Since this can be
+; called by an elevated instance logging is not performed in this function.
+Function SetAsDefaultAppUserHKCU
+  ; See if we're using path hash suffixed registry keys for this install
+  ${GetLongPath} "$INSTDIR\${FileMainEXE}" $8
+  ${StrFilter} "${FileMainEXE}" "+" "" "" $R9
+  ClearErrors
+  ReadRegStr $0 HKCU "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+  ${If} ${Errors}
+  ${OrIf} ${AtMostWin2008R2}
+    ClearErrors
+    ReadRegStr $0 HKLM "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+  ${EndIf}
+  StrCpy $0 $0 -2
+  ${If} $0 != $8
+    ${If} $AppUserModelID == ""
+      ${InitHashAppModelId} "$INSTDIR" "Software\Mozilla\${AppName}\TaskBarIDs"
+    ${EndIf}
+    StrCpy $R9 "${AppRegName}-$AppUserModelID"
+  ${EndIf}
+
+  ; Set ourselves as the user's selected StartMenuInternet browser, but only
+  ; if we have StartMenuInternet registry keys that are for this install.
+  ClearErrors
+  ReadRegStr $0 HKCU "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+  ${If} ${Errors}
+  ${OrIf} ${AtMostWin2008R2}
+    ClearErrors
+    ReadRegStr $0 HKLM "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+  ${EndIf}
+  ${Unless} ${Errors}
+    ${GetPathFromString} "$0" $0
+    ${GetParent} "$0" $0
+    ${If} ${FileExists} "$0"
+      ${GetLongPath} "$0" $0
+      ${If} "$0" == "$INSTDIR"
+        ; On Windows >= 8, this function cannot do anything to actually set
+        ; the default browser, it can only set up the registry entries to
+        ; allow the user to do so. Getting here means that those entries already
+        ; exist for this installation, we just found them, so there is nothing
+        ; more to be done.
+        ${If} ${AtLeastWin8}
+          Return
+        ${Else}
+          WriteRegStr HKCU "Software\Clients\StartMenuInternet" "" "$R9"
+        ${EndIf}
+      ${EndIf}
+    ${EndIf}
+  ${EndUnless}
+
+  SetShellVarContext current  ; Set SHCTX to the current user (e.g. HKCU)
+
+  ; It's unlikely that we didn't find a StartMenuInternet key above, but it is
+  ; possible; it likely would mean this copy of the application was extracted
+  ; directly from a ZIP file and the installer was never run.
+  ${If} ${AtLeastWin8}
+    ${SetStartMenuInternet} "HKCU"
+    ${FixShellIconHandler} "HKCU"
+    ${FixClassKeys} ; Does not use SHCTX
+  ${EndIf}
+
+  ${SetHandlers}
+
+  ; Only register as the handler if the app registry name
+  ; exists under the RegisteredApplications registry key. The protocol and
+  ; file handlers set previously at the user level will associate this install
+  ; as the default browser.
+  ClearErrors
+  ReadRegStr $0 HKLM "Software\RegisteredApplications" "$R9"
+  ${Unless} ${Errors}
+    ; This is all protected by a user choice hash in Windows 8 so it won't
+    ; help, but it also won't hurt.
+    AppAssocReg::SetAppAsDefault "$R9" ".htm" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".html" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".shtml" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".webp" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".avif" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".xht" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" ".xhtml" "file"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" "http" "protocol"
+    Pop $0
+    AppAssocReg::SetAppAsDefault "$R9" "https" "protocol"
+    Pop $0
+  ${EndUnless}
+  ${RemoveDeprecatedKeys}
+  ${MigrateTaskBarShortcut} "$R0"
+FunctionEnd
+
+; Helper for updating the shortcut application model IDs.
+Function FixShortcutAppModelIDs
+  ${If} ${AtLeastWin7}
+  ${AndIf} "$AppUserModelID" != ""
+    ${UpdateShortcutAppModelIDs} "$INSTDIR\${FileMainEXE}" "$AppUserModelID" $0
+  ${EndIf}
+FunctionEnd
+
+; Helper for adding Firewall exceptions during install and after app update.
+Function AddFirewallEntries
+  ${IsFirewallSvcRunning}
+  Pop $0
+  ${If} "$0" == "true"
+    liteFirewallW::AddRule "$INSTDIR\${FileMainEXE}" "${BrandShortName} ($INSTDIR)"
+  ${EndIf}
+FunctionEnd
+
+; The !ifdef NO_LOG prevents warnings when compiling the installer.nsi due to
+; this function only being used by the uninstaller.nsi.
+!ifdef NO_LOG
+
+Function SetAsDefaultAppUser
+  ; AddTaskbarSC is needed by MigrateTaskBarShortcut, which is called by
+  ; SetAsDefaultAppUserHKCU. If this is called via ExecCodeSegment,
+  ; MigrateTaskBarShortcut will not see the value of AddTaskbarSC, so we
+  ; send it via a register instead.
+  StrCpy $R0 $AddTaskbarSC
+  ; On Win8, we want to avoid having a UAC prompt since we'll already have
+  ; another action for control panel default browser selection popping up
+  ; to the user.  Win8 is the first OS where the start menu keys can be
+  ; added into HKCU.  The call to SetAsDefaultAppUserHKCU will have already
+  ; set the HKCU keys for SetStartMenuInternet.
+  ${If} ${AtLeastWin8}
+    ; Check if this is running in an elevated process
+    ClearErrors
+    ${GetParameters} $0
+    ${GetOptions} "$0" "/UAC:" $0
+    ${If} ${Errors} ; Not elevated
+      Call SetAsDefaultAppUserHKCU
+    ${Else} ; Elevated - execute the function in the unelevated process
+      GetFunctionAddress $0 SetAsDefaultAppUserHKCU
+      UAC::ExecCodeSegment $0
+    ${EndIf}
+    Return ; Nothing more needs to be done
+  ${EndIf}
+
+  ; Before Win8, it is only possible to set this installation of the application
+  ; as the StartMenuInternet handler if it was added to the HKLM
+  ; StartMenuInternet registry keys.
+  ; http://support.microsoft.com/kb/297878
+
+  ; Check if this install location registered as a StartMenuInternet client
+  ClearErrors
+  ReadRegStr $0 HKCU "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID\DefaultIcon" ""
+  ${If} ${Errors}
+  ${OrIf} ${AtMostWin2008R2}
+    ClearErrors
+    ReadRegStr $0 HKLM "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID\DefaultIcon" ""
+  ${EndIf}
+  ${If} ${Errors}
+    ${StrFilter} "${FileMainEXE}" "+" "" "" $R9
+    ClearErrors
+    ReadRegStr $0 HKCU "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+    ${If} ${Errors}
+    ${OrIf} ${AtMostWin2008R2}
+      ClearErrors
+      ReadRegStr $0 HKLM "Software\Clients\StartMenuInternet\$R9\DefaultIcon" ""
+    ${EndIf}
+  ${EndIf}
+
+  ${Unless} ${Errors}
+    ${GetPathFromString} "$0" $0
+    ${GetParent} "$0" $0
+    ${If} ${FileExists} "$0"
+      ${GetLongPath} "$0" $0
+      ${If} "$0" == "$INSTDIR"
+        ; Check if this is running in an elevated process
+        ClearErrors
+        ${GetParameters} $0
+        ${GetOptions} "$0" "/UAC:" $0
+        ${If} ${Errors} ; Not elevated
+          Call SetAsDefaultAppUserHKCU
+        ${Else} ; Elevated - execute the function in the unelevated process
+          GetFunctionAddress $0 SetAsDefaultAppUserHKCU
+          UAC::ExecCodeSegment $0
+        ${EndIf}
+        Return ; Nothing more needs to be done
+      ${EndIf}
+    ${EndIf}
+  ${EndUnless}
+
+  ; The code after ElevateUAC won't be executed when the user:
+  ; a) is a member of the administrators group (e.g. elevation is required)
+  ; b) is not a member of the administrators group and chooses to elevate
+  ${ElevateUAC}
+
+  ${SetStartMenuInternet} "HKLM"
+
+  SetShellVarContext all  ; Set SHCTX to all users (e.g. HKLM)
+
+  ${FixClassKeys} ; Does not use SHCTX
+  ${FixShellIconHandler} "HKLM"
+  ${RemoveDeprecatedKeys} ; Does not use SHCTX
+
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $0
+  ${If} ${Errors}
+    Call SetAsDefaultAppUserHKCU
+  ${Else}
+    GetFunctionAddress $0 SetAsDefaultAppUserHKCU
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+FunctionEnd
+!define SetAsDefaultAppUser "Call SetAsDefaultAppUser"
+
+!endif ; NO_LOG
+
+!ifdef MOZ_LAUNCHER_PROCESS
+!macro ResetLauncherProcessDefaults
+  # By deleting these values, we remove remnants of any force-disable settings
+  # that may have been set during the SHIELD study in 67. Note that this setting
+  # was only intended to distinguish between test and control groups for the
+  # purposes of the study, not as a user preference.
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Launcher"
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Browser"
+!macroend
+!define ResetLauncherProcessDefaults "!insertmacro ResetLauncherProcessDefaults"
+!endif
+
+!macro WriteToastNotificationRegistration RegKey
+  ; Find or create a GUID to use for this installation.  For simplicity, We
+  ; always update our registration.
+  ClearErrors
+  ReadRegStr $0 SHCTX "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator"
+  ${If} "$0" == ""
+    ; Create a GUID.
+    System::Call "rpcrt4::UuidCreate(g . r0)i"
+    ; StringFromGUID2 (which is what System::Call uses internally to stringify
+    ; GUIDs) includes braces in its output.  In this case, we want the braces.
+  ${EndIf}
+
+  ; Check if this is an ESR release.
+  ClearErrors
+  ${WordFind} "${UpdateChannel}" "esr" "E#" $1
+  ${If} ${Errors}
+    StrCpy $1 ""
+  ${Else}
+    StrCpy $1 " ESR"
+  ${EndIf}
+
+  ; Write the following keys and values to the registry.
+  ; HKEY_CURRENT_USER\Software\Classes\AppID\{GUID}                                     DllSurrogate    : REG_SZ        = ""
+  ;                                   \AppUserModelId\{ToastAumidPrefix}{install hash}  CustomActivator : REG_SZ        = {GUID}
+  ;                                                                                     DisplayName     : REG_EXPAND_SZ = {display name}
+  ;                                                                                     IconUri         : REG_EXPAND_SZ = {icon path}
+  ;                                   \CLSID\{GUID}                                     AppID           : REG_SZ        = {GUID}
+  ;                                                \InprocServer32                      (Default)       : REG_SZ        = {notificationserver.dll path}
+  ${WriteRegStr2} ${RegKey} "Software\Classes\AppID\$0" "DllSurrogate" "" 0
+  ${WriteRegStr2} ${RegKey} "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator" "$0" 0
+  ${WriteRegStr2} ${RegKey} "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "DisplayName" "${BrandFullNameInternal}$1" 0
+  ; Sadly, we can't use embedded resources like `firefox.exe,1`.
+  ${WriteRegStr2} ${RegKey} "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "IconUri" "$INSTDIR\browser\VisualElements\VisualElements_70.png" 0
+  ${WriteRegStr2} ${RegKey} "Software\Classes\CLSID\$0" "AppID" "$0" 0
+  ${WriteRegStr2} ${RegKey} "Software\Classes\CLSID\$0\InProcServer32" "" "$INSTDIR\notificationserver.dll" 0
+!macroend
+!define WriteToastNotificationRegistration "!insertmacro WriteToastNotificationRegistration"
diff --git a/browser/installer/windows/nsis/stub.nsi b/browser/installer/windows/nsis/stub.nsi
new file mode 100644
index 0000000000..3384198e96
--- /dev/null
+++ b/browser/installer/windows/nsis/stub.nsi
@@ -0,0 +1,1772 @@
+# 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/.
+
+# Required Plugins:
+# AppAssocReg
+# CertCheck
+# InetBgDL
+# ShellLink
+# UAC
+
+; Set verbosity to 3 (e.g. no script) to lessen the noise in the build logs
+!verbose 3
+
+SetDatablockOptimize on
+SetCompress off
+CRCCheck on
+
+RequestExecutionLevel user
+
+Unicode true
+ManifestSupportedOS all
+ManifestDPIAware true
+
+!addplugindir ./
+
+Var CheckboxSetAsDefault
+Var CheckboxShortcuts
+Var CheckboxSendPing
+Var CheckboxInstallMaintSvc
+Var CheckboxCleanupProfile
+
+Var FontFamilyName
+
+Var CanWriteToInstallDir
+Var HasRequiredSpaceAvailable
+Var IsDownloadFinished
+Var DownloadSizeBytes
+Var DownloadReset
+Var ExistingTopDir
+Var SpaceAvailableBytes
+Var InitialInstallDir
+Var HandleDownload
+Var CanSetAsDefault
+Var InstallCounterStep
+Var InstallTotalSteps
+Var ProgressCompleted
+Var UsingHighContrastMode
+
+Var ExitCode
+Var FirefoxLaunchCode
+
+Var StartDownloadPhaseTickCount
+; Since the Intro and Options pages can be displayed multiple times the total
+; seconds spent on each of these pages is reported.
+Var IntroPhaseSeconds
+Var OptionsPhaseSeconds
+; The tick count for the last download.
+Var StartLastDownloadTickCount
+; The number of seconds from the start of the download phase until the first
+; bytes are received. This is only recorded for first request so it is possible
+; to determine connection issues for the first request.
+Var DownloadFirstTransferSeconds
+; The last four tick counts are for the end of a phase in the installation page.
+Var EndDownloadPhaseTickCount
+Var EndPreInstallPhaseTickCount
+Var EndInstallPhaseTickCount
+Var EndFinishPhaseTickCount
+
+Var InitialInstallRequirementsCode
+Var ExistingProfile
+Var ExistingVersion
+Var ExistingBuildID
+Var DownloadedBytes
+Var DownloadRetryCount
+Var OpenedDownloadPage
+Var DownloadServerIP
+Var PostSigningData
+Var PreviousInstallDir
+Var ProfileCleanupPromptType
+Var AppLaunchWaitTickCount
+Var TimerHandle
+
+!define ARCH_X86 1
+!define ARCH_AMD64 2
+!define ARCH_AARCH64 3
+Var ArchToInstall
+
+; Uncomment the following to prevent pinging the metrics server when testing
+; the stub installer
+;!define STUB_DEBUG
+
+!define StubURLVersion "v8"
+
+; Successful install exit code
+!define ERR_SUCCESS 0
+
+/**
+ * The following errors prefixed with ERR_DOWNLOAD apply to the download phase.
+ */
+; The download was cancelled by the user
+!define ERR_DOWNLOAD_CANCEL 10
+
+; Too many attempts to download. The maximum attempts is defined in
+; DownloadMaxRetries.
+!define ERR_DOWNLOAD_TOO_MANY_RETRIES 11
+
+/**
+ * The following errors prefixed with ERR_PREINSTALL apply to the pre-install
+ * check phase.
+ */
+; Unable to acquire a file handle to the downloaded file
+!define ERR_PREINSTALL_INVALID_HANDLE 20
+
+; The downloaded file's certificate is not trusted by the certificate store.
+!define ERR_PREINSTALL_CERT_UNTRUSTED 21
+
+; The downloaded file's certificate attribute values were incorrect.
+!define ERR_PREINSTALL_CERT_ATTRIBUTES 22
+
+; The downloaded file's certificate is not trusted by the certificate store and
+; certificate attribute values were incorrect.
+!define ERR_PREINSTALL_CERT_UNTRUSTED_AND_ATTRIBUTES 23
+
+; Timed out while waiting for the certificate checks to run.
+!define ERR_PREINSTALL_CERT_TIMEOUT 24
+
+/**
+ * The following errors prefixed with ERR_INSTALL apply to the install phase.
+ */
+; The installation timed out. The installation timeout is defined by the number
+; of progress steps defined in InstallTotalSteps and the install timer
+; interval defined in InstallIntervalMS
+!define ERR_INSTALL_TIMEOUT 30
+
+; Maximum times to retry the download before displaying an error
+!define DownloadMaxRetries 9
+
+; Interval before retrying to download. 3 seconds is used along with 10
+; attempted downloads (the first attempt along with 9 retries) to give a
+; minimum of 30 seconds or retrying before giving up.
+!define DownloadRetryIntervalMS 3000
+
+; Interval for the download timer
+!define DownloadIntervalMS 200
+
+; Timeout for the certificate check
+!define PreinstallCertCheckMaxWaitSec 30
+
+; Interval for the install timer
+!define InstallIntervalMS 100
+
+; Number of steps for the install progress.
+; This might not be enough when installing on a slow network drive so it will
+; fallback to downloading the full installer if it reaches this number.
+
+; Approximately 200 seconds with a 100 millisecond timer.
+!define InstallCleanTotalSteps 2000
+
+; Approximately 215 seconds with a 100 millisecond timer.
+!define InstallPaveOverTotalSteps 2150
+
+; Blurb duty cycle
+!define BlurbDisplayMS 19500
+!define BlurbBlankMS 500
+
+; Interval between checks for the application window and progress bar updates.
+!define AppLaunchWaitIntervalMS 100
+
+; Total time to wait for the application to start before just exiting.
+!define AppLaunchWaitTimeoutMS 10000
+
+; Maximum value of the download/install/launch progress bar, and the end values
+; for each individual stage.
+!define PROGRESS_BAR_TOTAL_STEPS 500 
+!define PROGRESS_BAR_DOWNLOAD_END_STEP 300
+!define PROGRESS_BAR_INSTALL_END_STEP 475
+!define PROGRESS_BAR_APP_LAUNCH_END_STEP 500
+
+; Amount of physical memory required for the 64-bit build to be selected (2 GB).
+; Machines with this or less RAM get the 32-bit build, even with a 64-bit OS.
+!define RAM_NEEDED_FOR_64BIT 0x80000000
+
+; Attempt to elevate Standard Users in addition to users that
+; are a member of the Administrators group.
+!define NONADMIN_ELEVATE
+
+!define CONFIG_INI "config.ini"
+!define PARTNER_INI "$EXEDIR\partner.ini"
+
+!ifndef FILE_SHARE_READ
+  !define FILE_SHARE_READ 1
+!endif
+!ifndef GENERIC_READ
+  !define GENERIC_READ 0x80000000
+!endif
+!ifndef OPEN_EXISTING
+  !define OPEN_EXISTING 3
+!endif
+!ifndef INVALID_HANDLE_VALUE
+  !define INVALID_HANDLE_VALUE -1
+!endif
+
+!define DefaultInstDir32bit "$PROGRAMFILES32\${BrandFullName}"
+!define DefaultInstDir64bit "$PROGRAMFILES64\${BrandFullName}"
+
+!include "LogicLib.nsh"
+!include "FileFunc.nsh"
+!include "TextFunc.nsh"
+!include "WinVer.nsh"
+!include "WordFunc.nsh"
+
+!insertmacro GetParameters
+!insertmacro GetOptions
+!insertmacro LineFind
+!insertmacro StrFilter
+
+!include "locales.nsi"
+!include "branding.nsi"
+
+!include "defines.nsi"
+
+; Must be included after defines.nsi
+!include "locale-fonts.nsh"
+
+; The OFFICIAL define is a workaround to support different urls for Release and
+; Beta since they share the same branding when building with other branches that
+; set the update channel to beta.
+!ifdef OFFICIAL
+!ifdef BETA_UPDATE_CHANNEL
+!undef URLStubDownloadX86
+!undef URLStubDownloadAMD64
+!undef URLStubDownloadAArch64
+!define URLStubDownloadX86 "https://download.mozilla.org/?os=win&lang=${AB_CD}&product=firefox-beta-latest"
+!define URLStubDownloadAMD64 "https://download.mozilla.org/?os=win64&lang=${AB_CD}&product=firefox-beta-latest"
+!define URLStubDownloadAArch64 "https://download.mozilla.org/?os=win64-aarch64&lang=${AB_CD}&product=firefox-beta-latest"
+!undef URLManualDownload
+!define URLManualDownload "https://www.mozilla.org/${AB_CD}/firefox/installer-help/?channel=beta&installer_lang=${AB_CD}"
+!undef Channel
+!define Channel "beta"
+!endif
+!endif
+
+!include "common.nsh"
+
+!insertmacro CopyPostSigningData
+!insertmacro ElevateUAC
+!insertmacro GetLongPath
+!insertmacro GetPathFromString
+!insertmacro GetParent
+!insertmacro GetSingleInstallPath
+!insertmacro InitHashAppModelId
+!insertmacro IsUserAdmin
+!insertmacro RemovePrecompleteEntries
+!insertmacro SetBrandNameVars
+!insertmacro ITBL3Create
+!insertmacro UnloadUAC
+
+VIAddVersionKey "FileDescription" "${BrandShortName} Installer"
+VIAddVersionKey "OriginalFilename" "setup-stub.exe"
+
+Name "$BrandFullName"
+OutFile "setup-stub.exe"
+Icon "firefox64.ico"
+XPStyle on
+BrandingText " "
+ChangeUI IDD_INST "nsisui.exe"
+
+!ifdef ${AB_CD}_rtl
+  LoadLanguageFile "locale-rtl.nlf"
+!else
+  LoadLanguageFile "locale.nlf"
+!endif
+
+!include "nsisstrings.nlf"
+
+Caption "$(INSTALLER_WIN_CAPTION)"
+
+Page custom createProfileCleanup
+Page custom createInstall ; Download / Installation page
+
+Function .onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  StrCpy $LANGUAGE 0
+  ; This macro is used to set the brand name variables but the ini file method
+  ; isn't supported for the stub installer.
+  ${SetBrandNameVars} "$PLUGINSDIR\ignored.ini"
+
+  ; Don't install on systems that don't support SSE2. The parameter value of
+  ; 10 is for PF_XMMI64_INSTRUCTIONS_AVAILABLE which will check whether the
+  ; SSE2 instruction set is available.
+  System::Call "kernel32::IsProcessorFeaturePresent(i 10)i .R7"
+
+  ; Windows NT 6.0 (Vista/Server 2008) and lower are not supported.
+  ${Unless} ${AtLeastWin7}
+    ${If} "$R7" == "0"
+      strCpy $R7 "$(WARN_MIN_SUPPORTED_OSVER_CPU_MSG)"
+    ${Else}
+      strCpy $R7 "$(WARN_MIN_SUPPORTED_OSVER_MSG)"
+    ${EndIf}
+    MessageBox MB_OKCANCEL|MB_ICONSTOP "$R7" IDCANCEL +2
+    ExecShell "open" "${URLSystemRequirements}"
+    Quit
+  ${EndUnless}
+
+  ; SSE2 CPU support
+  ${If} "$R7" == "0"
+    MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_CPU_MSG)" IDCANCEL +2
+    ExecShell "open" "${URLSystemRequirements}"
+    Quit
+  ${EndIf}
+
+  Call GetArchToInstall
+  ${If} $ArchToInstall == ${ARCH_AARCH64}
+  ${OrIf} $ArchToInstall == ${ARCH_AMD64}
+    StrCpy $INSTDIR "${DefaultInstDir64bit}"
+  ${Else}
+    StrCpy $INSTDIR "${DefaultInstDir32bit}"
+  ${EndIf}
+
+  ; Require elevation if the user can elevate
+  ${ElevateUAC}
+
+  ; If we have any existing installation, use its location as the default
+  ; path for this install, even if it's not the same architecture.
+  SetRegView 32
+  SetShellVarContext all ; Set SHCTX to HKLM
+  ${GetSingleInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $R9
+
+  ${If} "$R9" == "false"
+    ${If} ${IsNativeAMD64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView 64
+      ${GetSingleInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $R9
+    ${EndIf}
+  ${EndIf}
+
+  ${If} "$R9" == "false"
+    SetShellVarContext current ; Set SHCTX to HKCU
+    ${GetSingleInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $R9
+  ${EndIf}
+
+  StrCpy $PreviousInstallDir ""
+  ${If} "$R9" != "false"
+    StrCpy $PreviousInstallDir "$R9"
+    StrCpy $INSTDIR "$PreviousInstallDir"
+  ${EndIf}
+
+  ; Used to determine if the default installation directory was used.
+  StrCpy $InitialInstallDir "$INSTDIR"
+
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" \
+                   "Write Test"
+
+  ; Only display set as default when there is write access to HKLM and on Win7
+  ; and below.
+  ${If} ${Errors}
+  ${OrIf} ${AtLeastWin8}
+    StrCpy $CanSetAsDefault "false"
+  ${Else}
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    StrCpy $CanSetAsDefault "true"
+  ${EndIf}
+  StrCpy $CheckboxSetAsDefault "0"
+
+  ; Initialize the majority of variables except those that need to be reset
+  ; when a page is displayed.
+  StrCpy $ExitCode "${ERR_DOWNLOAD_CANCEL}"
+  StrCpy $IntroPhaseSeconds "0"
+  StrCpy $OptionsPhaseSeconds "0"
+  StrCpy $EndPreInstallPhaseTickCount "0"
+  StrCpy $EndInstallPhaseTickCount "0"
+  StrCpy $StartDownloadPhaseTickCount "0"
+  StrCpy $EndDownloadPhaseTickCount "0"
+  StrCpy $InitialInstallRequirementsCode ""
+  StrCpy $IsDownloadFinished ""
+  StrCpy $FirefoxLaunchCode "0"
+  StrCpy $CheckboxShortcuts "1"
+  StrCpy $CheckboxSendPing "1"
+  StrCpy $CheckboxCleanupProfile "0"
+  StrCpy $ProgressCompleted "0"
+!ifdef MOZ_MAINTENANCE_SERVICE
+  ; We can only install the maintenance service if the user is an admin.
+  Call IsUserAdmin
+  Pop $0
+  ${If} "$0" == "true"
+    StrCpy $CheckboxInstallMaintSvc "1"
+  ${Else}
+    StrCpy $CheckboxInstallMaintSvc "0"
+  ${EndIf}
+!else
+  StrCpy $CheckboxInstallMaintSvc "0"
+!endif
+
+  StrCpy $FontFamilyName ""
+!ifdef FONT_FILE1
+  ${If} ${FileExists} "$FONTS\${FONT_FILE1}"
+    StrCpy $FontFamilyName "${FONT_NAME1}"
+  ${EndIf}
+!endif
+
+!ifdef FONT_FILE2
+  ${If} $FontFamilyName == ""
+  ${AndIf} ${FileExists} "$FONTS\${FONT_FILE2}"
+    StrCpy $FontFamilyName "${FONT_NAME2}"
+  ${EndIf}
+!endif
+
+  ${If} $FontFamilyName == ""
+    StrCpy $FontFamilyName "$(^Font)"
+  ${EndIf}
+
+  InitPluginsDir
+  File /oname=$PLUGINSDIR\bgstub.jpg "bgstub.jpg"
+
+  ; Detect whether the machine is running with a high contrast theme.
+  ; We'll hide our background images in that case, both because they don't
+  ; always render properly and also to improve the contrast.
+  System::Call '*(i 12, i 0, p 0) p . r0'
+  ; 0x42 == SPI_GETHIGHCONTRAST
+  System::Call 'user32::SystemParametersInfoW(i 0x42, i 0, p r0, i 0)'
+  System::Call '*$0(i, i . r1, p)'
+  System::Free $0
+  IntOp $UsingHighContrastMode $1 & 1
+
+  SetShellVarContext all ; Set SHCTX to All Users
+  ; If the user doesn't have write access to the installation directory set
+  ; the installation directory to a subdirectory of the user's local
+  ; application directory (e.g. non-roaming).
+  Call CanWrite
+  ${If} "$CanWriteToInstallDir" == "false"
+    ${GetLocalAppDataFolder} $0
+    StrCpy $INSTDIR "$0\${BrandFullName}\"
+    Call CanWrite
+  ${EndIf}
+
+  Call CheckSpace
+
+  ${If} ${FileExists} "$INSTDIR"
+    ; Always display the long path if the path exists.
+    ${GetLongPath} "$INSTDIR" $INSTDIR
+  ${EndIf}
+
+  ; Check whether the install requirements are satisfied using the default
+  ; values for metrics.
+  ${If} "$InitialInstallRequirementsCode" == ""
+    ${If} "$CanWriteToInstallDir" != "true"
+    ${AndIf} "$HasRequiredSpaceAvailable" != "true"
+      StrCpy $InitialInstallRequirementsCode "1"
+    ${ElseIf} "$CanWriteToInstallDir" != "true"
+      StrCpy $InitialInstallRequirementsCode "2"
+    ${ElseIf} "$HasRequiredSpaceAvailable" != "true"
+      StrCpy $InitialInstallRequirementsCode "3"
+    ${Else}
+      StrCpy $InitialInstallRequirementsCode "0"
+    ${EndIf}
+  ${EndIf}
+
+  Call CanWrite
+  ${If} "$CanWriteToInstallDir" == "false"
+    MessageBox MB_OK|MB_ICONEXCLAMATION "$(WARN_WRITE_ACCESS_QUIT)$\n$\n$INSTDIR"
+    Quit
+  ${EndIf}
+
+  Call CheckSpace
+  ${If} "$HasRequiredSpaceAvailable" == "false"
+    MessageBox MB_OK|MB_ICONEXCLAMATION "$(WARN_DISK_SPACE_QUIT)"
+    Quit
+  ${EndIf}
+
+  ${InitHashAppModelId} "$INSTDIR" "Software\Mozilla\${AppName}\TaskBarIDs"
+
+  File /oname=$PLUGINSDIR\stub_common.css "stub_common.css"
+  File /oname=$PLUGINSDIR\stub_common.js "stub_common.js"
+FunctionEnd
+
+; .onGUIInit isn't needed except for RTL locales
+!ifdef ${AB_CD}_rtl
+Function .onGUIInit
+  ${MakeWindowRTL} $HWNDPARENT
+FunctionEnd
+!endif
+
+Function .onGUIEnd
+  Delete "$PLUGINSDIR\_temp"
+  Delete "$PLUGINSDIR\download.exe"
+  Delete "$PLUGINSDIR\${CONFIG_INI}"
+
+  ${UnloadUAC}
+FunctionEnd
+
+Function .onUserAbort
+  WebBrowser::CancelTimer $TimerHandle
+
+  ${If} "$IsDownloadFinished" != ""
+    ; Go ahead and cancel the download so it doesn't keep running while this
+    ; prompt is up. We'll resume it if the user decides to continue.
+    InetBgDL::Get /RESET /END
+
+    ${ShowTaskDialog} $(STUB_CANCEL_PROMPT_HEADING) \
+                      $(STUB_CANCEL_PROMPT_MESSAGE) \
+                      $(STUB_CANCEL_PROMPT_BUTTON_CONTINUE) \
+                      $(STUB_CANCEL_PROMPT_BUTTON_EXIT)
+    Pop $0
+    ${If} $0 == 1002
+      ; The cancel button was clicked
+      Call LaunchHelpPage
+      Call SendPing
+    ${Else}
+      ; Either the continue button was clicked or the dialog was dismissed
+      Call StartDownload
+    ${EndIf}
+  ${Else}
+    Call SendPing
+  ${EndIf}
+
+  ; Aborting the abort will allow SendPing to hide the installer window and
+  ; close the installer after it sends the metrics ping, or allow us to just go
+  ; back to installing if that's what the user selected.
+  Abort
+FunctionEnd
+
+!macro _RegisterAllCustomFunctions
+  GetFunctionAddress $0 getUIString
+  WebBrowser::RegisterCustomFunction $0 "getUIString"
+
+  GetFunctionAddress $0 getTextDirection
+  WebBrowser::RegisterCustomFunction $0 "getTextDirection"
+
+  GetFunctionAddress $0 getFontName
+  WebBrowser::RegisterCustomFunction $0 "getFontName"
+
+  GetFunctionAddress $0 getIsHighContrast
+  WebBrowser::RegisterCustomFunction $0 "getIsHighContrast"
+
+  GetFunctionAddress $0 gotoInstallPage
+  WebBrowser::RegisterCustomFunction $0 "gotoInstallPage"
+
+  GetFunctionAddress $0 getProgressBarPercent
+  WebBrowser::RegisterCustomFunction $0 "getProgressBarPercent"
+!macroend
+!define RegisterAllCustomFunctions "!insertmacro _RegisterAllCustomFunctions"
+
+!macro _StartTimer _INTERVAL_MS _FUNCTION_NAME
+  Push $0
+  GetFunctionAddress $0 ${_FUNCTION_NAME}
+  WebBrowser::CreateTimer $0 ${_INTERVAL_MS}
+  Pop $TimerHandle
+  Pop $0
+!macroend
+!define StartTimer "!insertmacro _StartTimer"
+
+Function gotoInstallPage
+  Pop $0
+  StrCpy $CheckboxCleanupProfile $0
+
+  StrCpy $R9 1
+  Call RelativeGotoPage
+  Push $0
+FunctionEnd
+
+Function getProgressBarPercent
+  ; Custom functions always get one parameter, which we don't use here.
+  ; But we will use $0 as a scratch accumulator register.
+  Pop $0
+  ; This math is getting the progess bar completion fraction and converting it
+  ; to a percentage, but we implement that with the operations in the reverse
+  ; of the intuitive order so that our integer math doesn't truncate to zero.
+  IntOp $0 $ProgressCompleted * 100
+  IntOp $0 $0 / ${PROGRESS_BAR_TOTAL_STEPS}
+  Push $0
+FunctionEnd
+
+Function getTextDirection
+  Pop $0
+  !ifdef ${AB_CD}_rtl
+    Push "rtl"
+  !else
+    Push "ltr"
+  !endif
+FunctionEnd
+
+Function getFontName
+  Pop $0
+  Push $FontFamilyName
+FunctionEnd
+
+Function getIsHighContrast
+  Pop $0
+  Push $UsingHighContrastMode
+FunctionEnd
+
+Function getUIString
+  Pop $0
+  ${Select} $0
+    ${Case} "cleanup_header"
+      ${If} $ProfileCleanupPromptType == 1
+        Push "$(STUB_CLEANUP_REINSTALL_HEADER2)"
+      ${Else}
+        Push "$(STUB_CLEANUP_PAVEOVER_HEADER2)"
+      ${EndIf}
+    ${Case} "cleanup_button"
+      ${If} $ProfileCleanupPromptType == 1
+        Push "$(STUB_CLEANUP_REINSTALL_BUTTON2)"
+      ${Else}
+        Push "$(STUB_CLEANUP_PAVEOVER_BUTTON2)"
+      ${EndIf}
+    ${Case} "cleanup_checkbox"
+      Push "$(STUB_CLEANUP_CHECKBOX_LABEL2)"
+    ${Case} "installing_header"
+      Push "$(STUB_INSTALLING_HEADLINE2)"
+    ${Case} "installing_label"
+      Push "$(STUB_INSTALLING_LABEL2)"
+    ${Case} "installing_content"
+      Push "$(STUB_INSTALLING_BODY2)"
+    ${Case} "installing_blurb_0"
+      Push "$(STUB_BLURB_FIRST1)"
+    ${Case} "installing_blurb_1"
+      Push "$(STUB_BLURB_SECOND1)"
+    ${Case} "installing_blurb_2"
+      Push "$(STUB_BLURB_THIRD1)"
+    ${Case} "global_footer"
+      Push "$(STUB_BLURB_FOOTER2)"
+    ${Default}
+      Push ""
+  ${EndSelect}
+FunctionEnd
+
+Function createProfileCleanup
+  Call ShouldPromptForProfileCleanup
+
+  ${If} $ProfileCleanupPromptType == 0
+    StrCpy $CheckboxCleanupProfile 0
+    Abort ; Skip this page
+  ${EndIf}
+
+  ${RegisterAllCustomFunctions}
+
+  File /oname=$PLUGINSDIR\profile_cleanup.html "profile_cleanup.html"
+  File /oname=$PLUGINSDIR\profile_cleanup_page.css "profile_cleanup_page.css"
+  File /oname=$PLUGINSDIR\profile_cleanup.js "profile_cleanup.js"
+  WebBrowser::ShowPage "$PLUGINSDIR\profile_cleanup.html"
+FunctionEnd
+
+Function createInstall
+  GetDlgItem $0 $HWNDPARENT 1 ; Install button
+  EnableWindow $0 0
+  ShowWindow $0 ${SW_HIDE}
+
+  GetDlgItem $0 $HWNDPARENT 3 ; Back button
+  EnableWindow $0 0
+  ShowWindow $0 ${SW_HIDE}
+
+  GetDlgItem $0 $HWNDPARENT 2 ; Cancel button
+  ; Hide the Cancel button, but don't disable it (or else it won't be possible
+  ; to close the window)
+  ShowWindow $0 ${SW_HIDE}
+
+  ; Get keyboard focus on the parent
+  System::Call "user32::SetFocus(p$HWNDPARENT)"
+
+  ; Set $DownloadReset to true so the first download tick count is measured.
+  StrCpy $DownloadReset "true"
+  StrCpy $IsDownloadFinished "false"
+  StrCpy $DownloadRetryCount "0"
+  StrCpy $DownloadedBytes "0"
+  StrCpy $StartLastDownloadTickCount ""
+  StrCpy $DownloadFirstTransferSeconds ""
+  StrCpy $OpenedDownloadPage "0"
+
+  ClearErrors
+  ReadINIStr $ExistingVersion "$INSTDIR\application.ini" "App" "Version"
+  ${If} ${Errors}
+    StrCpy $ExistingVersion "0"
+  ${EndIf}
+
+  ClearErrors
+  ReadINIStr $ExistingBuildID "$INSTDIR\application.ini" "App" "BuildID"
+  ${If} ${Errors}
+    StrCpy $ExistingBuildID "0"
+  ${EndIf}
+
+  ${GetLocalAppDataFolder} $0
+  ${If} ${FileExists} "$0\Mozilla\Firefox"
+    StrCpy $ExistingProfile "1"
+  ${Else}
+    StrCpy $ExistingProfile "0"
+  ${EndIf}
+
+  StrCpy $DownloadServerIP ""
+
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $StartDownloadPhaseTickCount
+
+  ${If} ${FileExists} "$INSTDIR\uninstall\uninstall.log"
+    StrCpy $InstallTotalSteps ${InstallPaveOverTotalSteps}
+  ${Else}
+    StrCpy $InstallTotalSteps ${InstallCleanTotalSteps}
+  ${EndIf}
+
+  ${ITBL3Create}
+  ${ITBL3SetProgressState} "${TBPF_INDETERMINATE}"
+
+  ; Make sure the file we're about to try to download to doesn't already exist,
+  ; so we don't end up trying to "resume" on top of the wrong file.
+  Delete "$PLUGINSDIR\download.exe"
+
+  ${StartTimer} ${DownloadIntervalMS} StartDownload
+
+  ${RegisterAllCustomFunctions}
+
+  File /oname=$PLUGINSDIR\installing.html "installing.html"
+  File /oname=$PLUGINSDIR\installing_page.css "installing_page.css"
+  File /oname=$PLUGINSDIR\installing.js "installing.js"
+  WebBrowser::ShowPage "$PLUGINSDIR\installing.html"
+FunctionEnd
+
+Function StartDownload
+  WebBrowser::CancelTimer $TimerHandle
+
+  Call GetDownloadURL
+  Pop $0
+  InetBgDL::Get "$0" "$PLUGINSDIR\download.exe" \
+                /CONNECTTIMEOUT 120 /RECEIVETIMEOUT 120 /END
+
+  ${StartTimer} ${DownloadIntervalMS} OnDownload
+
+  ${If} ${FileExists} "$INSTDIR\${TO_BE_DELETED}"
+    RmDir /r "$INSTDIR\${TO_BE_DELETED}"
+  ${EndIf}
+FunctionEnd
+
+Function SetProgressBars
+  ${ITBL3SetProgressValue} "$ProgressCompleted" "${PROGRESS_BAR_TOTAL_STEPS}"
+FunctionEnd
+
+Function OnDownload
+  InetBgDL::GetStats
+  # $0 = HTTP status code, 0=Completed
+  # $1 = Completed files
+  # $2 = Remaining files
+  # $3 = Number of downloaded bytes for the current file
+  # $4 = Size of current file (Empty string if the size is unknown)
+  # /RESET must be used if status $0 > 299 (e.g. failure), even if resuming
+  # When status is $0 =< 299 it is handled by InetBgDL
+  StrCpy $DownloadServerIP "$5"
+  ${If} $0 > 299
+    WebBrowser::CancelTimer $TimerHandle
+    IntOp $DownloadRetryCount $DownloadRetryCount + 1
+    ${If} $DownloadRetryCount >= ${DownloadMaxRetries}
+      StrCpy $ExitCode "${ERR_DOWNLOAD_TOO_MANY_RETRIES}"
+      ; Use a timer so the UI has a chance to update
+      ${StartTimer} ${InstallIntervalMS} DisplayDownloadError
+      Return
+    ${EndIf}
+
+    ; 1000 is a special code meaning InetBgDL lost the connection before it got
+    ; all the bytes it was expecting. We'll try to resume the transfer in that
+    ; case (assuming we aren't out of retries), so don't treat it as a reset
+    ; or clear the progress bar.
+    ${If} $0 != 1000
+      ${If} "$DownloadReset" != "true"
+        StrCpy $DownloadedBytes "0"
+        ${ITBL3SetProgressState} "${TBPF_INDETERMINATE}"
+      ${EndIf}
+      StrCpy $DownloadSizeBytes ""
+      StrCpy $DownloadReset "true"
+      Delete "$PLUGINSDIR\download.exe"
+    ${EndIf}
+
+    InetBgDL::Get /RESET /END
+    ${StartTimer} ${DownloadRetryIntervalMS} StartDownload
+    Return
+  ${EndIf}
+
+  ${If} "$DownloadReset" == "true"
+    System::Call "kernel32::GetTickCount()l .s"
+    Pop $StartLastDownloadTickCount
+    StrCpy $DownloadReset "false"
+    ; The seconds elapsed from the start of the download phase until the first
+    ; bytes are received are only recorded for the first request so it is
+    ; possible to determine connection issues for the first request.
+    ${If} "$DownloadFirstTransferSeconds" == ""
+      ; Get the seconds elapsed from the start of the download phase until the
+      ; first bytes are received.
+      ${GetSecondsElapsed} "$StartDownloadPhaseTickCount" "$StartLastDownloadTickCount" $DownloadFirstTransferSeconds
+    ${EndIf}
+  ${EndIf}
+
+  ${If} "$DownloadSizeBytes" == ""
+  ${AndIf} "$4" != ""
+    StrCpy $DownloadSizeBytes "$4"
+    StrCpy $ProgressCompleted 0
+  ${EndIf}
+
+  ; Don't update the status until after the download starts
+  ${If} $2 != 0
+  ${AndIf} "$4" == ""
+    Return
+  ${EndIf}
+
+  ${If} $IsDownloadFinished != "true"
+    ${If} $2 == 0
+      WebBrowser::CancelTimer $TimerHandle
+      StrCpy $IsDownloadFinished "true"
+      System::Call "kernel32::GetTickCount()l .s"
+      Pop $EndDownloadPhaseTickCount
+
+      ${If} "$DownloadSizeBytes" == ""
+        ; It's possible for the download to finish before we were able to
+        ; get the size while it was downloading, and InetBgDL doesn't report
+        ; it afterwards. Use the size of the finished file.
+        ClearErrors
+        FileOpen $5 "$PLUGINSDIR\download.exe" r
+        ${IfNot} ${Errors}
+          FileSeek $5 0 END $DownloadSizeBytes
+          FileClose $5
+        ${EndIf}
+      ${EndIf}
+      StrCpy $DownloadedBytes "$DownloadSizeBytes"
+
+      ; Update the progress bars first in the UI change so they take affect
+      ; before other UI changes.
+      StrCpy $ProgressCompleted "${PROGRESS_BAR_DOWNLOAD_END_STEP}"
+      Call SetProgressBars
+
+      ; Disable the Cancel button during the install
+      GetDlgItem $5 $HWNDPARENT 2
+      EnableWindow $5 0
+
+      ; Open a handle to prevent modification of the full installer
+      StrCpy $R9 "${INVALID_HANDLE_VALUE}"
+      System::Call 'kernel32::CreateFileW(w "$PLUGINSDIR\download.exe", \
+                                          i ${GENERIC_READ}, \
+                                          i ${FILE_SHARE_READ}, i 0, \
+                                          i ${OPEN_EXISTING}, i 0, i 0) i .R9'
+      StrCpy $HandleDownload "$R9"
+
+      ${If} $HandleDownload == ${INVALID_HANDLE_VALUE}
+        StrCpy $ExitCode "${ERR_PREINSTALL_INVALID_HANDLE}"
+        System::Call "kernel32::GetTickCount()l .s"
+        Pop $EndPreInstallPhaseTickCount
+        ; Use a timer so the UI has a chance to update
+        ${StartTimer} ${InstallIntervalMS} DisplayDownloadError
+      ${Else}
+        CertCheck::CheckPETrustAndInfoAsync "$PLUGINSDIR\download.exe" \
+          "${CertNameDownload}" "${CertIssuerDownload}"
+        ${StartTimer} ${DownloadIntervalMS} OnCertCheck
+      ${EndIf}
+    ${Else}
+      StrCpy $DownloadedBytes "$3"
+      System::Int64Op $DownloadedBytes * ${PROGRESS_BAR_DOWNLOAD_END_STEP}
+      Pop $ProgressCompleted
+      System::Int64Op $ProgressCompleted / $DownloadSizeBytes
+      Pop $ProgressCompleted
+      Call SetProgressBars
+    ${EndIf}
+  ${EndIf}
+FunctionEnd
+
+Function OnCertCheck
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $EndPreInstallPhaseTickCount
+
+  CertCheck::GetStatus
+  Pop $0
+  ${If} $0 == 0
+    ${GetSecondsElapsed} "$EndDownloadPhaseTickCount" "$EndPreInstallPhaseTickCount" $0
+    ${If} $0 >= ${PreinstallCertCheckMaxWaitSec}
+      WebBrowser::CancelTimer $TimerHandle
+      StrCpy $ExitCode "${ERR_PREINSTALL_CERT_TIMEOUT}"
+      ; Use a timer so the UI has a chance to update
+      ${StartTimer} ${InstallIntervalMS} DisplayDownloadError
+    ${EndIf}
+    Return
+  ${EndIf}
+  Pop $0
+  Pop $1
+
+  ${If} $0 == 0
+  ${AndIf} $1 == 0
+    StrCpy $ExitCode "${ERR_PREINSTALL_CERT_UNTRUSTED_AND_ATTRIBUTES}"
+  ${ElseIf} $0 == 0
+    StrCpy $ExitCode "${ERR_PREINSTALL_CERT_UNTRUSTED}"
+  ${ElseIf} $1 == 0
+    StrCpy $ExitCode "${ERR_PREINSTALL_CERT_ATTRIBUTES}"
+  ${EndIf}
+
+  WebBrowser::CancelTimer $TimerHandle
+
+  ${If} $0 == 0
+  ${OrIf} $1 == 0
+    ; Use a timer so the UI has a chance to update
+    ${StartTimer} ${InstallIntervalMS} DisplayDownloadError
+    Return
+  ${EndIf}
+
+  Call LaunchFullInstaller
+FunctionEnd
+
+Function LaunchFullInstaller
+  ; Instead of extracting the files we use the downloaded installer to
+  ; install in case it needs to perform operations that the stub doesn't
+  ; know about.
+  WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "InstallDirectoryPath" "$INSTDIR"
+  ; Don't create the QuickLaunch or Taskbar shortcut from the launched installer
+  WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "QuickLaunchShortcut" "false"
+
+  ; Always create a start menu shortcut, so the user always has some way
+  ; to access the application.
+  WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "StartMenuShortcuts" "true"
+
+  ; Either avoid or force adding a taskbar pin and desktop shortcut
+  ; based on the checkbox value.
+  ${If} $CheckboxShortcuts == 0
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "TaskbarShortcut" "false"
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "DesktopShortcut" "false"
+  ${Else}
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "TaskbarShortcut" "true"
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "DesktopShortcut" "true"
+  ${EndIf}
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+  ${If} $CheckboxInstallMaintSvc == 1
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "MaintenanceService" "true"
+  ${Else}
+    WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "MaintenanceService" "false"
+  ${EndIf}
+!else
+  WriteINIStr "$PLUGINSDIR\${CONFIG_INI}" "Install" "MaintenanceService" "false"
+!endif
+
+  ; Delete the taskbar shortcut history to ensure we do the right thing based on
+  ; the config file above.
+  ${GetShortcutsLogPath} $0
+  Delete "$0"
+
+  ${RemovePrecompleteEntries} "false"
+
+  ; Delete the install.log and let the full installer create it. When the
+  ; installer closes it we can detect that it has completed.
+  Delete "$INSTDIR\install.log"
+
+  ; Delete firefox.exe.moz-upgrade and firefox.exe.moz-delete if it exists
+  ; since it being present will require an OS restart for the full
+  ; installer.
+  Delete "$INSTDIR\${FileMainEXE}.moz-upgrade"
+  Delete "$INSTDIR\${FileMainEXE}.moz-delete"
+
+  System::Call "kernel32::GetTickCount()l .s"
+  Pop $EndPreInstallPhaseTickCount
+
+  Exec "$\"$PLUGINSDIR\download.exe$\" /LaunchedFromStub /INI=$PLUGINSDIR\${CONFIG_INI}"
+  ${StartTimer} ${InstallIntervalMS} CheckInstall
+FunctionEnd
+
+Function SendPing
+  HideWindow
+
+  ${If} $CheckboxSendPing == 1
+    ; Get the tick count for the completion of all phases.
+    System::Call "kernel32::GetTickCount()l .s"
+    Pop $EndFinishPhaseTickCount
+
+    ; When the value of $IsDownloadFinished is false the download was started
+    ; but didn't finish. In this case the tick count stored in
+    ; $EndFinishPhaseTickCount is used to determine how long the download was
+    ; in progress.
+    ${If} "$IsDownloadFinished" == "false"
+      StrCpy $EndDownloadPhaseTickCount "$EndFinishPhaseTickCount"
+      ; Cancel the download in progress
+      InetBgDL::Get /RESET /END
+    ${EndIf}
+
+
+    ; When $DownloadFirstTransferSeconds equals an empty string the download
+    ; never successfully started so set the value to 0. It will be possible to
+    ; determine that the download didn't successfully start from the seconds for
+    ; the last download.
+    ${If} "$DownloadFirstTransferSeconds" == ""
+      StrCpy $DownloadFirstTransferSeconds "0"
+    ${EndIf}
+
+    ; When $StartLastDownloadTickCount equals an empty string the download never
+    ; successfully started so set the value to $EndDownloadPhaseTickCount to
+    ; compute the correct value.
+    ${If} $StartLastDownloadTickCount == ""
+      ; This could happen if the download never successfully starts
+      StrCpy $StartLastDownloadTickCount "$EndDownloadPhaseTickCount"
+    ${EndIf}
+
+    ; When $EndPreInstallPhaseTickCount equals 0 the installation phase was
+    ; never completed so set its value to $EndFinishPhaseTickCount to compute
+    ; the correct value.
+    ${If} "$EndPreInstallPhaseTickCount" == "0"
+      StrCpy $EndPreInstallPhaseTickCount "$EndFinishPhaseTickCount"
+    ${EndIf}
+
+    ; When $EndInstallPhaseTickCount equals 0 the installation phase was never
+    ; completed so set its value to $EndFinishPhaseTickCount to compute the
+    ; correct value.
+    ${If} "$EndInstallPhaseTickCount" == "0"
+      StrCpy $EndInstallPhaseTickCount "$EndFinishPhaseTickCount"
+    ${EndIf}
+
+    ; Get the seconds elapsed from the start of the download phase to the end of
+    ; the download phase.
+    ${GetSecondsElapsed} "$StartDownloadPhaseTickCount" "$EndDownloadPhaseTickCount" $0
+
+    ; Get the seconds elapsed from the start of the last download to the end of
+    ; the last download.
+    ${GetSecondsElapsed} "$StartLastDownloadTickCount" "$EndDownloadPhaseTickCount" $1
+
+    ; Get the seconds elapsed from the end of the download phase to the
+    ; completion of the pre-installation check phase.
+    ${GetSecondsElapsed} "$EndDownloadPhaseTickCount" "$EndPreInstallPhaseTickCount" $2
+
+    ; Get the seconds elapsed from the end of the pre-installation check phase
+    ; to the completion of the installation phase.
+    ${GetSecondsElapsed} "$EndPreInstallPhaseTickCount" "$EndInstallPhaseTickCount" $3
+
+    ; Get the seconds elapsed from the end of the installation phase to the
+    ; completion of all phases.
+    ${GetSecondsElapsed} "$EndInstallPhaseTickCount" "$EndFinishPhaseTickCount" $4
+
+    ${If} $ArchToInstall == ${ARCH_AMD64}
+    ${OrIf} $ArchToInstall == ${ARCH_AARCH64}
+      StrCpy $R0 "1"
+    ${Else}
+      StrCpy $R0 "0"
+    ${EndIf}
+
+    ${If} ${IsNativeAMD64}
+    ${OrIf} ${IsNativeARM64}
+      StrCpy $R1 "1"
+    ${Else}
+      StrCpy $R1 "0"
+    ${EndIf}
+
+    ; Though these values are sometimes incorrect due to bug 444664 it happens
+    ; so rarely it isn't worth working around it by reading the registry values.
+    ${WinVerGetMajor} $5
+    ${WinVerGetMinor} $6
+    ${WinVerGetBuild} $7
+    ${WinVerGetServicePackLevel} $8
+    ${If} ${IsServerOS}
+      StrCpy $9 "1"
+    ${Else}
+      StrCpy $9 "0"
+    ${EndIf}
+
+    ${If} "$ExitCode" == "${ERR_SUCCESS}"
+      ReadINIStr $R5 "$INSTDIR\application.ini" "App" "Version"
+      ReadINIStr $R6 "$INSTDIR\application.ini" "App" "BuildID"
+    ${Else}
+      StrCpy $R5 "0"
+      StrCpy $R6 "0"
+    ${EndIf}
+
+    ; Whether installed into the default installation directory
+    ${GetLongPath} "$INSTDIR" $R7
+    ${GetLongPath} "$InitialInstallDir" $R8
+    ${If} "$R7" == "$R8"
+      StrCpy $R7 "1"
+    ${Else}
+      StrCpy $R7 "0"
+    ${EndIf}
+
+    ClearErrors
+    WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" \
+                     "Write Test"
+    ${If} ${Errors}
+      StrCpy $R8 "0"
+    ${Else}
+      DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+      StrCpy $R8 "1"
+    ${EndIf}
+
+    ${If} "$DownloadServerIP" == ""
+      StrCpy $DownloadServerIP "Unknown"
+    ${EndIf}
+
+    StrCpy $R2 ""
+    SetShellVarContext current ; Set SHCTX to the current user
+    ReadRegStr $R2 HKCU "Software\Classes\http\shell\open\command" ""
+    ${If} $R2 != ""
+      ${GetPathFromString} "$R2" $R2
+      ${GetParent} "$R2" $R3
+      ${GetLongPath} "$R3" $R3
+      ${If} $R3 == $INSTDIR
+        StrCpy $R2 "1" ; This Firefox install is set as default.
+      ${Else}
+        StrCpy $R2 "$R2" "" -11 # length of firefox.exe
+        ${If} "$R2" == "${FileMainEXE}"
+          StrCpy $R2 "2" ; Another Firefox install is set as default.
+        ${Else}
+          StrCpy $R2 "0"
+        ${EndIf}
+      ${EndIf}
+    ${Else}
+      StrCpy $R2 "0" ; Firefox is not set as default.
+    ${EndIf}
+
+    ${If} "$R2" == "0"
+      StrCpy $R3 ""
+      ReadRegStr $R2 HKLM "Software\Classes\http\shell\open\command" ""
+      ${If} $R2 != ""
+        ${GetPathFromString} "$R2" $R2
+        ${GetParent} "$R2" $R3
+        ${GetLongPath} "$R3" $R3
+        ${If} $R3 == $INSTDIR
+          StrCpy $R2 "1" ; This Firefox install is set as default.
+        ${Else}
+          StrCpy $R2 "$R2" "" -11 # length of firefox.exe
+          ${If} "$R2" == "${FileMainEXE}"
+            StrCpy $R2 "2" ; Another Firefox install is set as default.
+          ${Else}
+            StrCpy $R2 "0"
+          ${EndIf}
+        ${EndIf}
+      ${Else}
+        StrCpy $R2 "0" ; Firefox is not set as default.
+      ${EndIf}
+    ${EndIf}
+
+    ${If} $CanSetAsDefault == "true"
+      ${If} $CheckboxSetAsDefault == "1"
+        StrCpy $R3 "2"
+      ${Else}
+        StrCpy $R3 "3"
+      ${EndIf}
+    ${Else}
+      ${If} ${AtLeastWin8}
+        StrCpy $R3 "1"
+      ${Else}
+        StrCpy $R3 "0"
+      ${EndIf}
+    ${EndIf}
+
+!ifdef STUB_DEBUG
+    MessageBox MB_OK "${BaseURLStubPing} \
+                      $\nStub URL Version = ${StubURLVersion}${StubURLVersionAppend} \
+                      $\nBuild Channel = ${Channel} \
+                      $\nUpdate Channel = ${UpdateChannel} \
+                      $\nLocale = ${AB_CD} \
+                      $\nFirefox x64 = $R0 \
+                      $\nRunning x64 Windows = $R1 \
+                      $\nMajor = $5 \
+                      $\nMinor = $6 \
+                      $\nBuild = $7 \
+                      $\nServicePack = $8 \
+                      $\nIsServer = $9 \
+                      $\nExit Code = $ExitCode \
+                      $\nFirefox Launch Code = $FirefoxLaunchCode \
+                      $\nDownload Retry Count = $DownloadRetryCount \
+                      $\nDownloaded Bytes = $DownloadedBytes \
+                      $\nDownload Size Bytes = $DownloadSizeBytes \
+                      $\nIntroduction Phase Seconds = $IntroPhaseSeconds \
+                      $\nOptions Phase Seconds = $OptionsPhaseSeconds \
+                      $\nDownload Phase Seconds = $0 \
+                      $\nLast Download Seconds = $1 \
+                      $\nDownload First Transfer Seconds = $DownloadFirstTransferSeconds \
+                      $\nPreinstall Phase Seconds = $2 \
+                      $\nInstall Phase Seconds = $3 \
+                      $\nFinish Phase Seconds = $4 \
+                      $\nInitial Install Requirements Code = $InitialInstallRequirementsCode \
+                      $\nOpened Download Page = $OpenedDownloadPage \
+                      $\nExisting Profile = $ExistingProfile \
+                      $\nExisting Version = $ExistingVersion \
+                      $\nExisting Build ID = $ExistingBuildID \
+                      $\nNew Version = $R5 \
+                      $\nNew Build ID = $R6 \
+                      $\nDefault Install Dir = $R7 \
+                      $\nHas Admin = $R8 \
+                      $\nDefault Status = $R2 \
+                      $\nSet As Sefault Status = $R3 \
+                      $\nDownload Server IP = $DownloadServerIP \
+                      $\nPost-Signing Data = $PostSigningData \
+                      $\nProfile cleanup prompt shown = $ProfileCleanupPromptType \
+                      $\nDid profile cleanup = $CheckboxCleanupProfile"
+    ; The following will exit the installer
+    SetAutoClose true
+    StrCpy $R9 "2"
+    Call RelativeGotoPage
+!else
+    ${StartTimer} ${DownloadIntervalMS} OnPing
+    InetBgDL::Get "${BaseURLStubPing}/${StubURLVersion}${StubURLVersionAppend}/${Channel}/${UpdateChannel}/${AB_CD}/$R0/$R1/$5/$6/$7/$8/$9/$ExitCode/$FirefoxLaunchCode/$DownloadRetryCount/$DownloadedBytes/$DownloadSizeBytes/$IntroPhaseSeconds/$OptionsPhaseSeconds/$0/$1/$DownloadFirstTransferSeconds/$2/$3/$4/$InitialInstallRequirementsCode/$OpenedDownloadPage/$ExistingProfile/$ExistingVersion/$ExistingBuildID/$R5/$R6/$R7/$R8/$R2/$R3/$DownloadServerIP/$PostSigningData/$ProfileCleanupPromptType/$CheckboxCleanupProfile" \
+                  "$PLUGINSDIR\_temp" /END
+!endif
+  ${Else}
+    ${If} "$IsDownloadFinished" == "false"
+      ; Cancel the download in progress
+      InetBgDL::Get /RESET /END
+    ${EndIf}
+    ; The following will exit the installer
+    SetAutoClose true
+    StrCpy $R9 "2"
+    Call RelativeGotoPage
+  ${EndIf}
+FunctionEnd
+
+Function OnPing
+  InetBgDL::GetStats
+  # $0 = HTTP status code, 0=Completed
+  # $1 = Completed files
+  # $2 = Remaining files
+  # $3 = Number of downloaded bytes for the current file
+  # $4 = Size of current file (Empty string if the size is unknown)
+  # /RESET must be used if status $0 > 299 (e.g. failure)
+  # When status is $0 =< 299 it is handled by InetBgDL
+  ${If} $2 == 0
+  ${OrIf} $0 > 299
+    WebBrowser::CancelTimer $TimerHandle
+    ${If} $0 > 299
+      InetBgDL::Get /RESET /END
+    ${EndIf}
+    ; The following will exit the installer
+    SetAutoClose true
+    StrCpy $R9 "2"
+    Call RelativeGotoPage
+  ${EndIf}
+FunctionEnd
+
+Function CheckInstall
+  IntOp $InstallCounterStep $InstallCounterStep + 1
+  ${If} $InstallCounterStep >= $InstallTotalSteps
+    WebBrowser::CancelTimer $TimerHandle
+    ; Close the handle that prevents modification of the full installer
+    System::Call 'kernel32::CloseHandle(i $HandleDownload)'
+    StrCpy $ExitCode "${ERR_INSTALL_TIMEOUT}"
+    ; Use a timer so the UI has a chance to update
+    ${StartTimer} ${InstallIntervalMS} DisplayDownloadError
+    Return
+  ${EndIf}
+
+  ${If} $ProgressCompleted < ${PROGRESS_BAR_INSTALL_END_STEP}
+    IntOp $0 ${PROGRESS_BAR_INSTALL_END_STEP} - ${PROGRESS_BAR_DOWNLOAD_END_STEP}
+    IntOp $0 $InstallCounterStep * $0
+    IntOp $0 $0 / $InstallTotalSteps
+    IntOp $ProgressCompleted ${PROGRESS_BAR_DOWNLOAD_END_STEP} + $0
+    Call SetProgressBars
+  ${EndIf}
+
+  ${If} ${FileExists} "$INSTDIR\install.log"
+    Delete "$INSTDIR\install.tmp"
+    CopyFiles /SILENT "$INSTDIR\install.log" "$INSTDIR\install.tmp"
+
+    ; The unfocus and refocus that happens approximately here is caused by the
+    ; installer calling RefreshShellIcons to refresh the shortcut icons.
+
+    ; When the full installer completes the installation the install.log will no
+    ; longer be in use.
+    ClearErrors
+    Delete "$INSTDIR\install.log"
+    ${Unless} ${Errors}
+      WebBrowser::CancelTimer $TimerHandle
+      ; Close the handle that prevents modification of the full installer
+      System::Call 'kernel32::CloseHandle(i $HandleDownload)'
+      Rename "$INSTDIR\install.tmp" "$INSTDIR\install.log"
+      Delete "$PLUGINSDIR\download.exe"
+      Delete "$PLUGINSDIR\${CONFIG_INI}"
+      System::Call "kernel32::GetTickCount()l .s"
+      Pop $EndInstallPhaseTickCount
+      Call FinishInstall
+    ${EndUnless}
+  ${EndIf}
+FunctionEnd
+
+Function FinishInstall
+  StrCpy $ProgressCompleted "${PROGRESS_BAR_INSTALL_END_STEP}"
+  Call SetProgressBars
+
+  ${If} ${FileExists} "$INSTDIR\${FileMainEXE}.moz-upgrade"
+    Delete "$INSTDIR\${FileMainEXE}"
+    Rename "$INSTDIR\${FileMainEXE}.moz-upgrade" "$INSTDIR\${FileMainEXE}"
+  ${EndIf}
+
+  StrCpy $ExitCode "${ERR_SUCCESS}"
+
+  ${CopyPostSigningData}
+  Pop $PostSigningData
+
+  Call LaunchApp
+FunctionEnd
+
+Function RelativeGotoPage
+  IntCmp $R9 0 0 Move Move
+  StrCmp $R9 "X" 0 Move
+  StrCpy $R9 "120"
+
+  Move:
+  SendMessage $HWNDPARENT "0x408" "$R9" ""
+FunctionEnd
+
+Function CheckSpace
+  ${If} "$ExistingTopDir" != ""
+    StrLen $0 "$ExistingTopDir"
+    StrLen $1 "$INSTDIR"
+    ${If} $0 <= $1
+      StrCpy $2 "$INSTDIR" $3
+      ${If} "$2" == "$ExistingTopDir"
+        Return
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+
+  StrCpy $ExistingTopDir "$INSTDIR"
+  ${DoUntil} ${FileExists} "$ExistingTopDir"
+    ${GetParent} "$ExistingTopDir" $ExistingTopDir
+    ${If} "$ExistingTopDir" == ""
+      StrCpy $SpaceAvailableBytes "0"
+      StrCpy $HasRequiredSpaceAvailable "false"
+      Return
+    ${EndIf}
+  ${Loop}
+
+  ${GetLongPath} "$ExistingTopDir" $ExistingTopDir
+
+  ; GetDiskFreeSpaceExW requires a backslash.
+  StrCpy $0 "$ExistingTopDir" "" -1 ; the last character
+  ${If} "$0" != "\"
+    StrCpy $0 "\"
+  ${Else}
+    StrCpy $0 ""
+  ${EndIf}
+
+  System::Call 'kernel32::GetDiskFreeSpaceExW(w, *l, *l, *l) i("$ExistingTopDir$0", .r1, .r2, .r3) .'
+  StrCpy $SpaceAvailableBytes "$1"
+
+  System::Int64Op $SpaceAvailableBytes / 1048576
+  Pop $1
+  System::Int64Op $1 > ${APPROXIMATE_REQUIRED_SPACE_MB}
+  Pop $1
+  ${If} $1 == 1
+    StrCpy $HasRequiredSpaceAvailable "true"
+  ${Else}
+    StrCpy $HasRequiredSpaceAvailable "false"
+  ${EndIf}
+FunctionEnd
+
+Function CanWrite
+  StrCpy $CanWriteToInstallDir "false"
+
+  StrCpy $0 "$INSTDIR"
+  ; Use the existing directory when it exists
+  ${Unless} ${FileExists} "$INSTDIR"
+    ; Get the topmost directory that exists for new installs
+    ${DoUntil} ${FileExists} "$0"
+      ${GetParent} "$0" $0
+      ${If} "$0" == ""
+        Return
+      ${EndIf}
+    ${Loop}
+  ${EndUnless}
+
+  GetTempFileName $2 "$0"
+  Delete $2
+  CreateDirectory "$2"
+
+  ${If} ${FileExists} "$2"
+    ${If} ${FileExists} "$INSTDIR"
+      GetTempFileName $3 "$INSTDIR"
+    ${Else}
+      GetTempFileName $3 "$2"
+    ${EndIf}
+    ${If} ${FileExists} "$3"
+      Delete "$3"
+      StrCpy $CanWriteToInstallDir "true"
+    ${EndIf}
+    RmDir "$2"
+  ${EndIf}
+FunctionEnd
+
+Function LaunchApp
+  StrCpy $FirefoxLaunchCode "2"
+
+  ; Set the current working directory to the installation directory
+  SetOutPath "$INSTDIR"
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $1
+  ${If} ${Errors}
+    ${If} $CheckboxCleanupProfile == 1
+      ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -reset-profile -migration -first-startup"
+    ${Else}
+      ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -first-startup"
+    ${EndIf}
+  ${Else}
+    StrCpy $R1 $CheckboxCleanupProfile
+    GetFunctionAddress $0 LaunchAppFromElevatedProcess
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+
+  StrCpy $AppLaunchWaitTickCount 0
+  ${StartTimer} ${AppLaunchWaitIntervalMS} WaitForAppLaunch
+FunctionEnd
+
+Function LaunchAppFromElevatedProcess
+  ; Set the current working directory to the installation directory
+  SetOutPath "$INSTDIR"
+  ${If} $R1 == 1
+    ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -reset-profile -migration -first-startup"
+  ${Else}
+    ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" -first-startup"
+  ${EndIf}
+FunctionEnd
+
+Function WaitForAppLaunch
+  FindWindow $0 "${MainWindowClass}"
+  FindWindow $1 "${DialogWindowClass}"
+  ${If} $0 <> 0
+  ${OrIf} $1 <> 0
+    WebBrowser::CancelTimer $TimerHandle
+    StrCpy $ProgressCompleted "${PROGRESS_BAR_APP_LAUNCH_END_STEP}"
+    Call SetProgressBars
+    Call SendPing
+    Return
+  ${EndIf}
+
+  IntOp $AppLaunchWaitTickCount $AppLaunchWaitTickCount + 1
+  IntOp $0 $AppLaunchWaitTickCount * ${AppLaunchWaitIntervalMS}
+  ${If} $0 >= ${AppLaunchWaitTimeoutMS}
+    ; We've waited an unreasonably long time, so just exit.
+    WebBrowser::CancelTimer $TimerHandle
+    Call SendPing
+    Return
+  ${EndIf}
+
+  ${If} $ProgressCompleted < ${PROGRESS_BAR_APP_LAUNCH_END_STEP}
+    IntOp $ProgressCompleted $ProgressCompleted + 1
+    Call SetProgressBars
+  ${EndIf}
+FunctionEnd
+
+Function DisplayDownloadError
+  WebBrowser::CancelTimer $TimerHandle
+  ; To better display the error state on the taskbar set the progress completed
+  ; value to the total value.
+  ${ITBL3SetProgressValue} "100" "100"
+  ${ITBL3SetProgressState} "${TBPF_ERROR}"
+
+  MessageBox MB_OKCANCEL|MB_ICONSTOP "$(ERROR_DOWNLOAD_CONT)" IDCANCEL +2 IDOK +1
+  Call LaunchHelpPage
+  Call SendPing
+FunctionEnd
+
+Function LaunchHelpPage
+  StrCpy $OpenedDownloadPage "1" ; Already initialized to 0
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $1
+  ${If} ${Errors}
+    Call OpenManualDownloadURL
+  ${Else}
+    GetFunctionAddress $0 OpenManualDownloadURL
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+FunctionEnd
+
+Function OpenManualDownloadURL
+  ClearErrors
+  ReadINIStr $0 "${PARTNER_INI}" "DownloadURL" "FallbackPage"
+  ${IfNot} ${Errors}
+    ExecShell "open" "$0"
+  ${Else}
+    ExecShell "open" "${URLManualDownload}${URLManualDownloadAppend}"
+  ${EndIf}
+FunctionEnd
+
+Function ShouldPromptForProfileCleanup
+  ; This will be our return value.
+  StrCpy $ProfileCleanupPromptType 0
+
+  ; Only consider installations of the same architecture we're installing.
+  ${If} $ArchToInstall == ${ARCH_AMD64}
+  ${OrIf} $ArchToInstall == ${ARCH_AARCH64}
+    SetRegView 64
+  ${Else}
+    SetRegView 32
+  ${EndIf}
+
+  ; Make sure $APPDATA is the user's AppData and not ProgramData.
+  ; We'll set this back to all at the end of the function.
+  SetShellVarContext current
+
+  ${FindInstallSpecificProfile}
+  Pop $R0
+
+  ${If} $R0 == ""
+    ; We don't have an install-specific profile, so look for an old-style
+    ; default profile instead by checking each numbered Profile section.
+    StrCpy $0 0
+    ${Do}
+      ClearErrors
+      ; Check if the section exists by reading a value that must be present.
+      ReadINIStr $1 "$APPDATA\Mozilla\Firefox\profiles.ini" "Profile$0" "Path"
+      ${If} ${Errors}
+        ; We've run out of profile sections.
+        ${Break}
+      ${EndIf}
+
+      ClearErrors
+      ReadINIStr $1 "$APPDATA\Mozilla\Firefox\profiles.ini" "Profile$0" "Default"
+      ${IfNot} ${Errors}
+      ${AndIf} $1 == "1"
+        ; We've found the default profile
+        ReadINIStr $1 "$APPDATA\Mozilla\Firefox\profiles.ini" "Profile$0" "Path"
+        ReadINIStr $2 "$APPDATA\Mozilla\Firefox\profiles.ini" "Profile$0" "IsRelative"
+        ${If} $2 == "1"
+          StrCpy $R0 "$APPDATA\Mozilla\Firefox\$1"
+        ${Else}
+          StrCpy $R0 "$1"
+        ${EndIf}
+        ${Break}
+      ${EndIf}
+
+      IntOp $0 $0 + 1
+    ${Loop}
+  ${EndIf}
+
+  GetFullPathName $R0 $R0
+
+  ${If} $R0 == ""
+    ; No profile to clean up, so don't show the cleanup prompt.
+    GoTo end
+  ${EndIf}
+
+  ; We have at least one profile present. If we don't have any installations,
+  ; then we need to show the re-install prompt. We'll say there's an
+  ; installation present if HKCR\FirefoxURL* exists and points to a real path.
+  StrCpy $0 0
+  StrCpy $R9 ""
+  ${Do}
+    ClearErrors
+    EnumRegKey $1 HKCR "" $0
+    ${If} ${Errors}
+    ${OrIf} $1 == ""
+      ${Break}
+    ${EndIf}
+    ${WordFind} "$1" "-" "+1{" $2
+    ${If} $2 == "FirefoxURL"
+      ClearErrors
+      ReadRegStr $2 HKCR "$1\DefaultIcon" ""
+      ${IfNot} ${Errors}
+        ${GetPathFromString} $2 $1
+        ${If} ${FileExists} $1
+          StrCpy $R9 $1
+          ${Break}
+        ${EndIf}
+      ${EndIf}
+    ${EndIf}
+    IntOp $0 $0 + 1
+  ${Loop}
+  ${If} $R9 == ""
+    StrCpy $ProfileCleanupPromptType 1
+    GoTo end
+  ${EndIf}
+
+  ; Okay, there's at least one install, let's see if it's for this channel.
+  SetShellVarContext all
+  ${GetSingleInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $0
+  ${If} $0 == "false"
+    SetShellVarContext current
+    ${GetSingleInstallPath} "Software\Mozilla\${BrandFullNameInternal}" $0
+    ${If} $0 == "false"
+      ; Existing installs are not for this channel. Don't show any prompt.
+      GoTo end
+    ${EndIf}
+  ${EndIf}
+
+  ; Find out what version the default profile was last used on.
+  ${If} ${FileExists} "$R0\compatibility.ini"
+    ClearErrors
+    ReadINIStr $0 "$R0\compatibility.ini" "Compatibility" "LastVersion"
+    ${If} ${Errors}
+      GoTo end
+    ${EndIf}
+    ${WordFind} $0 "." "+1{" $0
+
+    ; We don't know what version we're about to install because we haven't
+    ; downloaded it yet. Find out what the latest version released on this
+    ; channel is and assume we'll be installing that one.
+    Call GetLatestReleasedVersion
+    ${If} ${Errors}
+      ; Use this stub installer's version as a fallback when we can't get the
+      ; real current version; this may be behind, but it's better than nothing.
+      StrCpy $1 ${AppVersion}
+    ${EndIf}
+
+    ${WordFind} $1 "." "+1{" $1
+    IntOp $1 $1 - 2
+
+    ${If} $1 > $0
+      ; Default profile was last used more than two versions ago, so we need
+      ; to show the paveover version of the profile cleanup prompt.
+      StrCpy $ProfileCleanupPromptType 2
+    ${EndIf}
+  ${EndIf}
+
+  end:
+  SetRegView lastused
+  SetShellVarContext all
+FunctionEnd
+
+Function GetLatestReleasedVersion
+  ClearErrors
+  Push $0 ; InetBgDl::GetStats uses $0 for the HTTP error code
+  ; $1 is our return value, so don't save it
+  Push $2 ; InetBgDl::GetStats uses $2 to tell us when the transfer is done
+  Push $3 ; $3 - $5 are also set by InetBgDl::GetStats, but we don't use them
+  Push $4
+  Push $5
+  Push $6 ; This is our response timeout counter
+
+  InetBgDL::Get /RESET /END
+  InetBgDL::Get "https://product-details.mozilla.org/1.0/firefox_versions.json" \
+                "$PLUGINSDIR\firefox_versions.json" \
+                /CONNECTTIMEOUT 120 /RECEIVETIMEOUT 120 /END
+
+  ; Wait for the response, but only give it half a second since this is on the
+  ; installer startup path (we haven't even shown a window yet).
+  StrCpy $6 0
+  ${Do}
+    Sleep 100
+    InetBgDL::GetStats
+    IntOp $6 $6 + 1
+
+    ${If} $2 == 0
+      ${Break}
+    ${ElseIf} $6 >= 5
+      InetBgDL::Get /RESET /END
+      SetErrors
+      GoTo end
+    ${EndIf}
+  ${Loop}
+
+  StrCpy $1 0
+  nsJSON::Set /file "$PLUGINSDIR\firefox_versions.json"
+  IfErrors end
+  ${Select} ${Channel}
+  ${Case} "unofficial"
+    StrCpy $1 "FIREFOX_NIGHTLY"
+  ${Case} "nightly"
+    StrCpy $1 "FIREFOX_NIGHTLY"
+  ${Case} "aurora"
+    StrCpy $1 "FIREFOX_DEVEDITION"
+  ${Case} "beta"
+    StrCpy $1 "LATEST_FIREFOX_RELEASED_DEVEL_VERSION"
+  ${Case} "release"
+    StrCpy $1 "LATEST_FIREFOX_VERSION"
+  ${EndSelect}
+  nsJSON::Get $1 /end
+
+  end:
+  ${If} ${Errors}
+  ${OrIf} $1 == 0
+    SetErrors
+    StrCpy $1 0
+  ${Else}
+    Pop $1
+  ${EndIf}
+
+  Pop $6
+  Pop $5
+  Pop $4
+  Pop $3
+  Pop $2
+  Pop $0
+FunctionEnd
+
+; Determine which architecture build we should download and install.
+; AArch64 is always selected if it's the native architecture of the machine.
+; Otherwise, we check a few things to determine if AMD64 is appropriate:
+; 1) Running a 64-bit OS (we've already checked the OS version).
+; 2) An amount of RAM strictly greater than RAM_NEEDED_FOR_64BIT
+; 3) No third-party products installed that cause issues with the 64-bit build.
+;    Currently this includes Lenovo OneKey Theater and Lenovo Energy Management.
+; We also make sure that the partner.ini file contains a download URL for the
+; selected architecture, when a partner.ini file eixsts.
+; If any of those checks fail, the 32-bit x86 build is selected.
+Function GetArchToInstall
+  StrCpy $ArchToInstall ${ARCH_X86}
+
+  ${If} ${IsNativeARM64}
+    StrCpy $ArchToInstall ${ARCH_AARCH64}
+    GoTo downloadUrlCheck
+  ${EndIf}
+
+  ${IfNot} ${IsNativeAMD64}
+    Return
+  ${EndIf}
+
+  System::Call "*(i 64, i, l 0, l, l, l, l, l, l)p.r1"
+  System::Call "Kernel32::GlobalMemoryStatusEx(p r1)"
+  System::Call "*$1(i, i, l.r2, l, l, l, l, l, l)"
+  System::Free $1
+  ${If} $2 L<= ${RAM_NEEDED_FOR_64BIT}
+    Return
+  ${EndIf}
+
+  ; Lenovo OneKey Theater can theoretically be in a directory other than this
+  ; one, because some installer versions let you change it, but it's unlikely.
+  ${If} ${FileExists} "$PROGRAMFILES32\Lenovo\Onekey Theater\windowsapihookdll64.dll"
+    Return
+  ${EndIf}
+
+  ${If} ${FileExists} "$PROGRAMFILES32\Lenovo\Energy Management\Energy Management.exe"
+    Return
+  ${EndIf}
+
+  StrCpy $ArchToInstall ${ARCH_AMD64}
+
+  downloadUrlCheck:
+  ; If we've selected an architecture that doesn't have a download URL in the
+  ; partner.ini, but there is a URL there for 32-bit x86, then fall back to
+  ; 32-bit x86 on the theory that we should never use a non-partner build if
+  ; we are configured as a partner installer, even if the only build that's
+  ; provided is suboptimal for the machine. If there isn't even an x86 URL,
+  ; then we won't force x86 and GetDownloadURL will stick with the built-in URL.
+  ClearErrors
+  ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "X86"
+  ${IfNot} ${Errors}
+    ${If} $ArchToInstall == ${ARCH_AMD64}
+      ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "AMD64"
+      ${If} ${Errors}
+        StrCpy $ArchToInstall ${ARCH_X86}
+      ${EndIf}
+    ${ElseIf} $ArchToInstall == ${ARCH_AARCH64}
+      ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "AArch64"
+      ${If} ${Errors}
+        StrCpy $ArchToInstall ${ARCH_X86}
+      ${EndIf}
+    ${EndIf}
+  ${EndIf}
+FunctionEnd
+
+Function GetDownloadURL
+  Push $0
+  Push $1
+
+  ; Start with the appropriate URL from our built-in branding info.
+  ${If} $ArchToInstall == ${ARCH_AMD64}
+    StrCpy $0 "${URLStubDownloadAMD64}${URLStubDownloadAppend}"
+  ${ElseIf} $ArchToInstall == ${ARCH_AARCH64}
+    StrCpy $0 "${URLStubDownloadAArch64}${URLStubDownloadAppend}"
+  ${Else}
+    StrCpy $0 "${URLStubDownloadX86}${URLStubDownloadAppend}"
+  ${EndIf}
+
+  ; If we have a partner.ini file then use the URL from there instead.
+  ClearErrors
+  ${If} $ArchToInstall == ${ARCH_AMD64}
+    ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "AMD64"
+  ${ElseIf} $ArchToInstall == ${ARCH_AARCH64}
+    ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "AArch64"
+  ${Else}
+    ReadINIStr $1 "${PARTNER_INI}" "DownloadURL" "X86"
+  ${EndIf}
+  ${IfNot} ${Errors}
+    StrCpy $0 "$1"
+  ${EndIf}
+
+  Pop $1
+  Exch $0
+FunctionEnd
+
+Section
+SectionEnd
diff --git a/browser/installer/windows/nsis/uninstaller.nsi b/browser/installer/windows/nsis/uninstaller.nsi
new file mode 100755
index 0000000000..97b4ed11e8
--- /dev/null
+++ b/browser/installer/windows/nsis/uninstaller.nsi
@@ -0,0 +1,1133 @@
+# 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/.
+
+# Required Plugins:
+# AppAssocReg
+#   http://nsis.sourceforge.net/Application_Association_Registration_plug-in
+# BitsUtils
+#   http://searchfox.org/mozilla-central/source/other-licenses/nsis/Contrib/BitsUtils
+# CityHash
+#   http://searchfox.org/mozilla-central/source/other-licenses/nsis/Contrib/CityHash
+# HttpPostFile
+#   http://searchfox.org/mozilla-central/source/other-licenses/nsis/Contrib/HttpPostFile
+# ShellLink
+#   http://nsis.sourceforge.net/ShellLink_plug-in
+# UAC
+#   http://nsis.sourceforge.net/UAC_plug-in
+
+; Set verbosity to 3 (e.g. no script) to lessen the noise in the build logs
+!verbose 3
+
+; 7-Zip provides better compression than the lzma from NSIS so we add the files
+; uncompressed and use 7-Zip to create a SFX archive of it
+SetDatablockOptimize on
+SetCompress off
+CRCCheck on
+
+RequestExecutionLevel user
+
+Unicode true
+ManifestSupportedOS all
+ManifestDPIAware true
+
+!addplugindir ./
+
+; Attempt to elevate Standard Users in addition to users that
+; are a member of the Administrators group.
+!define NONADMIN_ELEVATE
+
+; prevents compiling of the reg write logging.
+!define NO_LOG
+
+!define MaintUninstallKey \
+ "Software\Microsoft\Windows\CurrentVersion\Uninstall\MozillaMaintenanceService"
+
+Var TmpVal
+Var MaintCertKey
+Var ShouldOpenSurvey
+Var ShouldSendPing
+Var InstalledVersion
+Var InstalledBuildID
+Var ShouldPromptForRefresh
+Var RefreshRequested
+; AddTaskbarSC is defined here in order to silence warnings from inside
+; MigrateTaskBarShortcut and is not intended to be used here.
+; See Bug 1329869 for more.
+Var AddTaskbarSC
+
+; Other included files may depend upon these includes!
+; The following includes are provided by NSIS.
+!include FileFunc.nsh
+!include InstallOptions.nsh
+!include LogicLib.nsh
+!include MUI.nsh
+!include WinMessages.nsh
+!include WinVer.nsh
+!include WordFunc.nsh
+
+!insertmacro GetSize
+!insertmacro StrFilter
+!insertmacro WordReplace
+
+!insertmacro un.GetParent
+
+; The following includes are custom.
+!include branding.nsi
+!include defines.nsi
+!include common.nsh
+!include locales.nsi
+
+; This is named BrandShortName helper because we use this for software update
+; post update cleanup.
+VIAddVersionKey "FileDescription" "${BrandShortName} Helper"
+VIAddVersionKey "OriginalFilename" "helper.exe"
+
+!insertmacro AddDisabledDDEHandlerValues
+!insertmacro CleanVirtualStore
+!insertmacro ElevateUAC
+!insertmacro GetLongPath
+!insertmacro GetPathFromString
+!insertmacro InitHashAppModelId
+!insertmacro IsHandlerForInstallDir
+!insertmacro IsPinnedToTaskBar
+!insertmacro IsUserAdmin
+!insertmacro LogDesktopShortcut
+!insertmacro LogQuickLaunchShortcut
+!insertmacro LogStartMenuShortcut
+!insertmacro PinnedToStartMenuLnkCount
+!insertmacro RegCleanAppHandler
+!insertmacro RegCleanMain
+!insertmacro RegCleanUninstall
+!insertmacro SetAppLSPCategories
+!insertmacro SetBrandNameVars
+!insertmacro UpdateShortcutAppModelIDs
+!insertmacro UnloadUAC
+!insertmacro WriteRegDWORD2
+!insertmacro WriteRegStr2
+
+; This needs to be inserted after InitHashAppModelId because it uses
+; $AppUserModelID and the compiler can't handle using variables lexically before
+; they've been declared.
+!insertmacro GetInstallerRegistryPref
+
+!insertmacro un.ChangeMUIHeaderImage
+!insertmacro un.ChangeMUISidebarImage
+!insertmacro un.CheckForFilesInUse
+!insertmacro un.CleanUpdateDirectories
+!insertmacro un.CleanVirtualStore
+!insertmacro un.DeleteShortcuts
+!insertmacro un.GetCommonDirectory
+!insertmacro un.GetLongPath
+!insertmacro un.GetSecondInstallPath
+!insertmacro un.InitHashAppModelId
+!insertmacro un.ManualCloseAppPrompt
+!insertmacro un.RegCleanAppHandler
+!insertmacro un.RegCleanFileHandler
+!insertmacro un.RegCleanMain
+!insertmacro un.RegCleanPrefs
+!insertmacro un.RegCleanUninstall
+!insertmacro un.RegCleanProtocolHandler
+!insertmacro un.RemoveQuotesFromPath
+!insertmacro un.RemovePrecompleteEntries
+!insertmacro un.SetAppLSPCategories
+!insertmacro un.SetBrandNameVars
+
+!include shared.nsh
+
+; Helper macros for ui callbacks. Insert these after shared.nsh
+!insertmacro OnEndCommon
+!insertmacro UninstallOnInitCommon
+
+!insertmacro un.OnEndCommon
+!insertmacro un.UninstallUnOnInitCommon
+
+Name "${BrandFullName}"
+OutFile "helper.exe"
+!ifdef HAVE_64BIT_BUILD
+  InstallDir "$PROGRAMFILES64\${BrandFullName}\"
+!else
+  InstallDir "$PROGRAMFILES32\${BrandFullName}\"
+!endif
+ShowUnInstDetails nevershow
+
+!define URLUninstallSurvey "https://qsurvey.mozilla.com/s3/FF-Desktop-Post-Uninstall?channel=${UpdateChannel}&version=${AppVersion}&osversion="
+
+; Support for the profile refresh feature
+!define URLProfileRefreshHelp "https://support.mozilla.org/kb/refresh-firefox-reset-add-ons-and-settings"
+
+; Arguments to add to the command line when launching FileMainEXE for profile refresh
+!define ArgsProfileRefresh "-reset-profile -migration -uninstaller-profile-refresh"
+
+################################################################################
+# Modern User Interface - MUI
+
+!define MUI_ABORTWARNING
+!define MUI_ICON setup.ico
+!define MUI_UNICON setup.ico
+!define MUI_WELCOMEPAGE_TITLE_3LINES
+!define MUI_HEADERIMAGE
+!define MUI_HEADERIMAGE_RIGHT
+!define MUI_UNWELCOMEFINISHPAGE_BITMAP wizWatermark.bmp
+; By default MUI_BGCOLOR is hardcoded to FFFFFF, which is only correct if the
+; the Windows theme or high-contrast mode hasn't changed it, so we need to
+; override that with GetSysColor(COLOR_WINDOW) (this string ends up getting
+; passed to SetCtlColors, which uses this custom syntax to mean that).
+!define MUI_BGCOLOR SYSCLR:WINDOW
+
+; Use a right to left header image when the language is right to left
+!ifdef ${AB_CD}_rtl
+!define MUI_HEADERIMAGE_BITMAP_RTL wizHeaderRTL.bmp
+!else
+!define MUI_HEADERIMAGE_BITMAP wizHeader.bmp
+!endif
+
+!define MUI_CUSTOMFUNCTION_UNGUIINIT un.GUIInit
+
+/**
+ * Uninstall Pages
+ */
+; Welcome Page
+!define MUI_PAGE_CUSTOMFUNCTION_PRE un.preWelcome
+!define MUI_PAGE_CUSTOMFUNCTION_SHOW un.showWelcome
+!define MUI_PAGE_CUSTOMFUNCTION_LEAVE un.leaveWelcome
+!insertmacro MUI_UNPAGE_WELCOME
+
+; Custom Uninstall Confirm Page
+UninstPage custom un.preConfirm
+
+; Remove Files Page
+!insertmacro MUI_UNPAGE_INSTFILES
+
+; Finish Page
+!define MUI_FINISHPAGE_SHOWREADME
+!define MUI_FINISHPAGE_SHOWREADME_NOTCHECKED
+!define MUI_FINISHPAGE_SHOWREADME_TEXT $(UN_SURVEY_CHECKBOX_LABEL)
+!define MUI_FINISHPAGE_SHOWREADME_FUNCTION un.Survey
+!define MUI_PAGE_CUSTOMFUNCTION_PRE un.preFinish
+!define MUI_PAGE_CUSTOMFUNCTION_SHOW un.showFinish
+!insertmacro MUI_UNPAGE_FINISH
+
+; Use the default dialog for IDD_VERIFY for a simple Banner
+ChangeUI IDD_VERIFY "${NSISDIR}\Contrib\UIs\default.exe"
+
+################################################################################
+# Helper Functions
+
+Function un.Survey
+  ; We can't actually call ExecInExplorer here because it's going to have to
+  ; make some marshalled COM calls and those are not allowed from within a
+  ; synchronous message handler (where we currently are); we'll be thrown
+  ; RPC_E_CANTCALLOUT_ININPUTSYNCCALL if we try. So all we can do is record
+  ; that we need to make the call later, which we'll do from un.onGUIEnd.
+  StrCpy $ShouldOpenSurvey "1"
+FunctionEnd
+
+; This function is used to uninstall the maintenance service if the
+; application currently being uninstalled is the last application to use the
+; maintenance service.
+Function un.UninstallServiceIfNotUsed
+  ; $0 will store if a subkey exists
+  ; $1 will store the first subkey if it exists or an empty string if it doesn't
+  ; Backup the old values
+  Push $0
+  Push $1
+
+  ; The maintenance service always uses the 64-bit registry on x64 systems
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    SetRegView 64
+  ${EndIf}
+
+  ; Figure out the number of subkeys
+  StrCpy $0 0
+  ${Do}
+    EnumRegKey $1 HKLM "Software\Mozilla\MaintenanceService" $0
+    ${If} "$1" == ""
+      ${ExitDo}
+    ${EndIf}
+    IntOp $0 $0 + 1
+  ${Loop}
+
+  ; Restore back the registry view
+  ${If} ${RunningX64}
+  ${OrIf} ${IsNativeARM64}
+    SetRegView lastused
+  ${EndIf}
+
+  ${If} $0 == 0
+    ; Get the path of the maintenance service uninstaller.
+    ; Look in both the 32-bit and 64-bit registry views.
+    SetRegView 32
+    ReadRegStr $1 HKLM ${MaintUninstallKey} "UninstallString"
+    SetRegView lastused
+
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      ${If} $1 == ""
+        SetRegView 64
+        ReadRegStr $1 HKLM ${MaintUninstallKey} "UninstallString"
+        SetRegView lastused
+      ${EndIf}
+    ${EndIf}
+
+    ; If the uninstall string does not exist, skip executing it
+    ${If} $1 != ""
+      ; $1 is already a quoted string pointing to the install path
+      ; so we're already protected against paths with spaces
+      nsExec::Exec "$1 /S"
+    ${EndIf}
+  ${EndIf}
+
+  ; Restore the old value of $1 and $0
+  Pop $1
+  Pop $0
+FunctionEnd
+
+Function un.LaunchAppForRefresh
+  Push $0
+  Push $1
+  ; Set the current working directory to the installation directory
+  SetOutPath "$INSTDIR"
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $1
+  ${If} ${Errors}
+    ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" ${ArgsProfileRefresh}"
+  ${Else}
+    GetFunctionAddress $0 un.LaunchAppForRefreshFromElevatedProcess
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+  Pop $1
+  Pop $0
+FunctionEnd
+
+Function un.LaunchAppForRefreshFromElevatedProcess
+  ; Set the current working directory to the installation directory
+  SetOutPath "$INSTDIR"
+  ${ExecAndWaitForInputIdle} "$\"$INSTDIR\${FileMainEXE}$\" ${ArgsProfileRefresh}"
+FunctionEnd
+
+Function un.LaunchRefreshHelpPage
+  Push $0
+  Push $1
+  ClearErrors
+  ${GetParameters} $0
+  ${GetOptions} "$0" "/UAC:" $1
+  ${If} ${Errors}
+    Call un.OpenRefreshHelpURL
+  ${Else}
+    GetFunctionAddress $0 un.OpenRefreshHelpURL
+    UAC::ExecCodeSegment $0
+  ${EndIf}
+  Pop $1
+  Pop $0
+FunctionEnd
+
+Function un.OpenRefreshHelpURL
+  ExecShell "open" "${URLProfileRefreshHelp}"
+FunctionEnd
+
+Function un.SendUninstallPing
+  ; Notably, we only check the non-private AUMID here. There's no good reason
+  ; to send the uninstall ping twice.
+  ${If} $AppUserModelID == ""
+    Return
+  ${EndIf}
+
+  Push $0   ; $0 = Find handle
+  Push $1   ; $1 = Found ping file name
+  Push $2   ; $2 = Directory containing the pings
+  Push $3   ; $3 = Ping file name filespec
+  Push $4   ; $4 = Offset of ID in file name
+  Push $5   ; $5 = URL, POST result
+  Push $6   ; $6 = Full path to the ping file
+
+  Call un.GetCommonDirectory
+  Pop $2
+
+  ; The ping ID is in the file name, so that we can get it for the submission URL
+  ; without having to parse the ping. Since we don't know the exact name, use FindFirst
+  ; to locate the file.
+  ; Format is uninstall_ping_$AppUserModelID_$PingUUID.json
+
+  ; File name base
+  StrCpy $3 "uninstall_ping_$AppUserModelID_"
+  ; Get length of the fixed prefix, this is the offset of ping ID in the file name
+  StrLen $4 $3
+  ; Finish building filespec
+  StrCpy $3 "$2\$3*.json"
+
+  ClearErrors
+  FindFirst $0 $1 $3
+  ; Build the full path
+  StrCpy $6 "$2\$1"
+
+  ${IfNot} ${Errors}
+    ; Copy the ping ID, starting after $AppUserModelID_, ending 5 from the end to remove .json
+    StrCpy $5 $1 -5 $4
+
+    ; Build the full submission URL from the ID
+    ; https://docs.telemetry.mozilla.org/concepts/pipeline/http_edge_spec.html#special-handling-for-firefox-desktop-telemetry
+    ; It's possible for the path components to disagree with the contents of the ping,
+    ; but this should be rare, and shouldn't affect the collection.
+    StrCpy $5 "${TELEMETRY_BASE_URL}/${TELEMETRY_UNINSTALL_PING_NAMESPACE}/$5/${TELEMETRY_UNINSTALL_PING_DOCTYPE}/${AppName}/$InstalledVersion/${UpdateChannel}/$InstalledBuildID?v=4"
+
+    HttpPostFile::Post $6 "Content-Type: application/json$\r$\n" $5
+    ; Pop the result. This could indicate an error if it's something other than
+    ; "success", but we don't have any recovery path here anyway.
+    Pop $5
+
+    ${Do}
+      Delete $6
+
+      ; Continue to delete any other pings from this install. Only the first found will be sent:
+      ; there should only be one ping, if there are more than one then something has gone wrong,
+      ; it seems preferable to not try to send them all.
+      ClearErrors
+      FindNext $0 $1
+      ; Build the full path
+      StrCpy $6 "$2\$1"
+    ${LoopUntil} ${Errors}
+
+    FindClose $0
+  ${Endif}
+
+  Pop $6
+  Pop $5
+  Pop $4
+  Pop $3
+  Pop $2
+  Pop $1
+  Pop $0
+FunctionEnd
+
+################################################################################
+# Install Sections
+; Empty section required for the installer to compile as an uninstaller
+Section ""
+SectionEnd
+
+################################################################################
+# Uninstall Sections
+
+Section "Uninstall"
+  SetDetailsPrint textonly
+  DetailPrint $(STATUS_UNINSTALL_MAIN)
+  SetDetailsPrint none
+
+  ; Some system cleanup is most easily handled when XPCOM functionality is
+  ; available - e.g. removing notifications from Window's Action Center. We
+  ; handle this in the `uninstall` background task.
+  ;
+  ; Return value is saved to an unused variable to prevent the the error flag
+  ; from being set.
+  Var /GLOBAL UnusedExecCatchReturn
+  ExecWait '"$INSTDIR\${FileMainEXE}" --backgroundtask uninstall' $UnusedExecCatchReturn
+
+  ; Delete the app exe to prevent launching the app while we are uninstalling.
+  ClearErrors
+  ${DeleteFile} "$INSTDIR\${FileMainEXE}"
+  ${If} ${Errors}
+    ; If the user closed the application it can take several seconds for it to
+    ; shut down completely. If the application is being used by another user we
+    ; can still delete the files when the system is restarted.
+    Sleep 5000
+    ${DeleteFile} "$INSTDIR\${FileMainEXE}"
+    ClearErrors
+  ${EndIf}
+
+  SetShellVarContext current  ; Set SHCTX to HKCU
+  ${un.RegCleanMain} "Software\Mozilla"
+  ${un.RegCleanPrefs} "Software\Mozilla\${AppName}"
+  ${un.RegCleanUninstall}
+  ${un.DeleteShortcuts}
+
+  ${If} "$AppUserModelID" != ""
+    ; Unregister resources associated with Win7 taskbar jump lists.
+    ${If} ${AtLeastWin7}
+      ApplicationID::UninstallJumpLists "$AppUserModelID"
+    ${EndIf}
+    ; Remove the update sync manager's multi-instance lock file
+    Call un.GetCommonDirectory
+    Pop $0
+    Delete /REBOOTOK "$0\UpdateLock-$AppUserModelID"
+  ${EndIf}
+
+  ${If} "$AppUserModelIDPrivate" != ""
+    ${If} ${AtLeastWin7}
+      ApplicationID::UninstallJumpLists "$AppUserModelIDPrivate"
+    ${EndIf}
+  ${EndIf}
+
+  ; Remove the updates directory
+  ${un.CleanUpdateDirectories} "Mozilla\Firefox" "Mozilla\updates"
+
+  ; Remove any app model id's stored in the registry for this install path
+  DeleteRegValue HKCU "Software\Mozilla\${AppName}\TaskBarIDs" "$INSTDIR"
+  DeleteRegValue HKLM "Software\Mozilla\${AppName}\TaskBarIDs" "$INSTDIR"
+
+  ClearErrors
+  WriteRegStr HKLM "Software\Mozilla" "${BrandShortName}InstallerTest" "Write Test"
+  ${If} ${Errors}
+    StrCpy $TmpVal "HKCU" ; used primarily for logging
+  ${Else}
+    SetShellVarContext all  ; Set SHCTX to HKLM
+    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
+    StrCpy $TmpVal "HKLM" ; used primarily for logging
+    ${un.RegCleanMain} "Software\Mozilla"
+    ${un.RegCleanUninstall}
+    ${un.DeleteShortcuts}
+    ${un.SetAppLSPCategories}
+  ${EndIf}
+
+  ${un.RegCleanAppHandler} "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanAppHandler} "FirefoxPDF-$AppUserModelID"
+  ${un.RegCleanAppHandler} "FirefoxURL-$AppUserModelID"
+  ${un.RegCleanProtocolHandler} "http"
+  ${un.RegCleanProtocolHandler} "https"
+  ${un.RegCleanProtocolHandler} "mailto"
+  ${un.RegCleanFileHandler}  ".htm"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".html"  "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".shtml" "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".xht"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".xhtml" "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".oga"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".ogg"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".ogv"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".webm"  "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".svg"   "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".webp"  "FirefoxHTML-$AppUserModelID"
+  ${un.RegCleanFileHandler}  ".avif"  "FirefoxHTML-$AppUserModelID"
+
+  ${un.RegCleanFileHandler}  ".pdf"   "FirefoxPDF-$AppUserModelID"
+
+  SetShellVarContext all  ; Set SHCTX to HKLM
+  ${un.GetSecondInstallPath} "Software\Mozilla" $R9
+  ${If} $R9 == "false"
+    SetShellVarContext current  ; Set SHCTX to HKCU
+    ${un.GetSecondInstallPath} "Software\Mozilla" $R9
+  ${EndIf}
+
+  DeleteRegKey HKLM "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID"
+  DeleteRegValue HKLM "Software\RegisteredApplications" "${AppRegName}-$AppUserModelID"
+
+  DeleteRegKey HKCU "Software\Clients\StartMenuInternet\${AppRegName}-$AppUserModelID"
+  DeleteRegValue HKCU "Software\RegisteredApplications" "${AppRegName}-$AppUserModelID"
+
+  ; Remove old protocol handler and StartMenuInternet keys without install path
+  ; hashes, but only if they're for this installation.  We've never supported
+  ; bare FirefoxPDF.
+  ReadRegStr $0 HKLM "Software\Classes\FirefoxHTML\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 == "$INSTDIR\${FileMainEXE}"
+    DeleteRegKey HKLM "Software\Classes\FirefoxHTML"
+    DeleteRegKey HKLM "Software\Classes\FirefoxURL"
+    ${StrFilter} "${FileMainEXE}" "+" "" "" $R9
+    DeleteRegKey HKLM "Software\Clients\StartMenuInternet\$R9"
+    DeleteRegValue HKLM "Software\RegisteredApplications" "$R9"
+    DeleteRegValue HKLM "Software\RegisteredApplications" "${AppRegName}"
+  ${EndIf}
+  ReadRegStr $0 HKCU "Software\Classes\FirefoxHTML\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 == "$INSTDIR\${FileMainEXE}"
+    DeleteRegKey HKCU "Software\Classes\FirefoxHTML"
+    DeleteRegKey HKCU "Software\Classes\FirefoxURL"
+    ${StrFilter} "${FileMainEXE}" "+" "" "" $R9
+    DeleteRegKey HKCU "Software\Clients\StartMenuInternet\$R9"
+    DeleteRegValue HKCU "Software\RegisteredApplications" "$R9"
+    DeleteRegValue HKCU "Software\RegisteredApplications" "${AppRegName}"
+  ${EndIf}
+
+  StrCpy $0 "Software\Microsoft\Windows\CurrentVersion\App Paths\${FileMainEXE}"
+  ${If} $R9 == "false"
+    DeleteRegKey HKLM "$0"
+    DeleteRegKey HKCU "$0"
+    StrCpy $0 "Software\Microsoft\MediaPlayer\ShimInclusionList\${FileMainEXE}"
+    DeleteRegKey HKLM "$0"
+    DeleteRegKey HKCU "$0"
+    StrCpy $0 "Software\Microsoft\MediaPlayer\ShimInclusionList\plugin-container.exe"
+    DeleteRegKey HKLM "$0"
+    DeleteRegKey HKCU "$0"
+    StrCpy $0 "Software\Classes\MIME\Database\Content Type\application/x-xpinstall;app=firefox"
+    DeleteRegKey HKLM "$0"
+    DeleteRegKey HKCU "$0"
+  ${Else}
+    ReadRegStr $R1 HKLM "$0" ""
+    ${un.RemoveQuotesFromPath} "$R1" $R1
+    ${un.GetParent} "$R1" $R1
+    ${If} "$INSTDIR" == "$R1"
+      WriteRegStr HKLM "$0" "" "$R9"
+      ${un.GetParent} "$R9" $R1
+      WriteRegStr HKLM "$0" "Path" "$R1"
+    ${EndIf}
+  ${EndIf}
+
+  ; Remove our HKCR/Applications key, if it's for this installation.
+  ReadRegStr $0 HKLM "Software\Classes\Applications\${FileMainEXE}\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 == "$INSTDIR\${FileMainEXE}"
+    DeleteRegKey HKLM "Software\Classes\Applications\${FileMainEXE}"
+  ${EndIf}
+  ReadRegStr $0 HKCU "Software\Classes\Applications\${FileMainEXE}\DefaultIcon" ""
+  StrCpy $0 $0 -2
+  ${If} $0 == "$INSTDIR\${FileMainEXE}"
+    DeleteRegKey HKCU "Software\Classes\Applications\${FileMainEXE}"
+  ${EndIf}
+
+  ; Remove directories and files we always control before parsing the uninstall
+  ; log so empty directories can be removed.
+  ${If} ${FileExists} "$INSTDIR\updates"
+    RmDir /r /REBOOTOK "$INSTDIR\updates"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\updated"
+    RmDir /r /REBOOTOK "$INSTDIR\updated"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\defaults\shortcuts"
+    RmDir /r /REBOOTOK "$INSTDIR\defaults\shortcuts"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\distribution"
+    RmDir /r /REBOOTOK "$INSTDIR\distribution"
+  ${EndIf}
+
+  ; Remove files that may be left behind by the application in the
+  ; VirtualStore directory.
+  ${un.CleanVirtualStore}
+
+  ; Only unregister the dll if the registration points to this installation
+  ReadRegStr $R1 HKCR "CLSID\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\InProcServer32" ""
+  ${If} "$INSTDIR\AccessibleMarshal.dll" == "$R1"
+    ${UnregisterDLL} "$INSTDIR\AccessibleMarshal.dll"
+  ${EndIf}
+
+  ; Only unregister the dll if the registration points to this installation
+  ReadRegStr $R1 HKCR "CLSID\${AccessibleHandlerCLSID}\InprocHandler32" ""
+  ${If} "$INSTDIR\AccessibleHandler.dll" == "$R1"
+    ${UnregisterDLL} "$INSTDIR\AccessibleHandler.dll"
+  ${EndIf}
+
+  ; Remove the Windows Reporter Module entry
+  DeleteRegValue HKLM "SOFTWARE\Microsoft\Windows\Windows Error Reporting\RuntimeExceptionHelperModules" "$INSTDIR\mozwer.dll"
+
+!ifdef MOZ_LAUNCHER_PROCESS
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Launcher"
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Browser"
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Image"
+  DeleteRegValue HKCU ${MOZ_LAUNCHER_SUBKEY} "$INSTDIR\${FileMainEXE}|Telemetry"
+!endif
+
+  ; Remove Toast Notification registration.
+  ${If} ${AtLeastWin10}
+    ; Find any GUID used for this installation.
+    ClearErrors
+    ReadRegStr $0 HKLM "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator"
+
+    DeleteRegValue HKLM "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator"
+    DeleteRegValue HKLM "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "DisplayName"
+    DeleteRegValue HKLM "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "IconUri"
+    DeleteRegKey HKLM "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID"
+    ${If} "$0" != ""
+      DeleteRegValue HKLM "Software\Classes\AppID\$0" "DllSurrogate"
+      DeleteRegKey HKLM "Software\Classes\AppID\$0"
+      DeleteRegValue HKLM "Software\Classes\CLSID\$0" "AppID"
+      DeleteRegValue HKLM "Software\Classes\CLSID\$0\InProcServer32" ""
+      DeleteRegKey HKLM "Software\Classes\CLSID\$0\InProcServer32"
+      DeleteRegKey HKLM "Software\Classes\CLSID\$0"
+    ${EndIf}
+
+    ClearErrors
+    ReadRegStr $0 HKCU "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator"
+
+    DeleteRegValue HKCU "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "CustomActivator"
+    DeleteRegValue HKCU "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "DisplayName"
+    DeleteRegValue HKCU "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID" "IconUri"
+    DeleteRegKey HKCU "Software\Classes\AppUserModelId\${ToastAumidPrefix}$AppUserModelID"
+    ${If} "$0" != ""
+      DeleteRegValue HKCU "Software\Classes\AppID\$0" "DllSurrogate"
+      DeleteRegKey HKCU "Software\Classes\AppID\$0"
+      DeleteRegValue HKCU "Software\Classes\CLSID\$0" "AppID"
+      DeleteRegValue HKCU "Software\Classes\CLSID\$0\InProcServer32" ""
+      DeleteRegKey HKCU "Software\Classes\CLSID\$0\InProcServer32"
+      DeleteRegKey HKCU "Software\Classes\CLSID\$0"
+    ${EndIf}
+  ${EndIf}
+
+  ; Uninstall the default browser agent scheduled task and all other scheduled
+  ; tasks registered by Firefox.
+  ; This also removes the registry entries that the WDBA creates.
+  ; One of the scheduled tasks that this will remove is the Background Update
+  ; Task. Ideally, this will eventually be changed so that it doesn't rely on
+  ; the WDBA. See Bug 1710143.
+  ExecWait '"$INSTDIR\default-browser-agent.exe" uninstall $AppUserModelID'
+  ${RemoveDefaultBrowserAgentShortcut}
+
+  ${un.RemovePrecompleteEntries} "false"
+
+  ${If} ${FileExists} "$INSTDIR\defaults\pref\channel-prefs.js"
+    Delete /REBOOTOK "$INSTDIR\defaults\pref\channel-prefs.js"
+  ${EndIf}
+  RmDir "$INSTDIR\defaults\pref"
+  RmDir "$INSTDIR\defaults"
+  ${If} ${FileExists} "$INSTDIR\uninstall"
+    ; Remove the uninstall directory that we control
+    RmDir /r /REBOOTOK "$INSTDIR\uninstall"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\install.log"
+    Delete /REBOOTOK "$INSTDIR\install.log"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\update-settings.ini"
+    Delete /REBOOTOK "$INSTDIR\update-settings.ini"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\installation_telemetry.json"
+    Delete /REBOOTOK "$INSTDIR\installation_telemetry.json"
+  ${EndIf}
+  ${If} ${FileExists} "$INSTDIR\postSigningData"
+    Delete /REBOOTOK "$INSTDIR\postSigningData"
+  ${EndIf}
+
+  ; Explicitly remove empty webapprt dir in case it exists (bug 757978).
+  RmDir "$INSTDIR\webapprt\components"
+  RmDir "$INSTDIR\webapprt"
+
+  ; Remove the installation directory if it is empty
+  RmDir "$INSTDIR"
+
+  ; If firefox.exe was successfully deleted yet we still need to restart to
+  ; remove other files create a dummy firefox.exe.moz-delete to prevent the
+  ; installer from allowing an install without restart when it is required
+  ; to complete an uninstall.
+  ${If} ${RebootFlag}
+    ; Admin is required to delete files on reboot so only add the moz-delete if
+    ; the user is an admin. After calling UAC::IsAdmin $0 will equal 1 if the
+    ; user is an admin.
+    UAC::IsAdmin
+    ${If} "$0" == "1"
+      ${Unless} ${FileExists} "$INSTDIR\${FileMainEXE}.moz-delete"
+        FileOpen $0 "$INSTDIR\${FileMainEXE}.moz-delete" w
+        FileWrite $0 "Will be deleted on restart"
+        Delete /REBOOTOK "$INSTDIR\${FileMainEXE}.moz-delete"
+        FileClose $0
+      ${EndUnless}
+    ${EndIf}
+  ${EndIf}
+
+  ; Refresh desktop icons otherwise the start menu internet item won't be
+  ; removed and other ugly things will happen like recreation of the app's
+  ; clients registry key by the OS under some conditions.
+  ${RefreshShellIcons}
+
+  ; Users who uninstall then reinstall expecting Firefox to use a clean profile
+  ; may be surprised during first-run. This key is checked during startup of Firefox and
+  ; subsequently deleted after checking. If the value is found during startup
+  ; the browser will offer to Reset Firefox. We use the UpdateChannel to match
+  ; uninstalls of Firefox-release with reinstalls of Firefox-release, for example.
+  WriteRegStr HKCU "Software\Mozilla\Firefox" "Uninstalled-${UpdateChannel}" "True"
+
+!ifdef MOZ_MAINTENANCE_SERVICE
+  ; Get the path the allowed cert is at and remove it
+  ; Keep this block of code last since it modfies the reg view
+  ServicesHelper::PathToUniqueRegistryPath "$INSTDIR"
+  Pop $MaintCertKey
+  ${If} $MaintCertKey != ""
+    ; Always use the 64bit registry for certs on 64bit systems.
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView 64
+    ${EndIf}
+    DeleteRegKey HKLM "$MaintCertKey"
+    ${If} ${RunningX64}
+    ${OrIf} ${IsNativeARM64}
+      SetRegView lastused
+    ${EndIf}
+  ${EndIf}
+  Call un.UninstallServiceIfNotUsed
+!endif
+
+!ifdef MOZ_BITS_DOWNLOAD
+  BitsUtils::CancelBitsJobsByName "MozillaUpdate $AppUserModelID"
+  Pop $0
+!endif
+
+  ${un.IsFirewallSvcRunning}
+  Pop $0
+  ${If} "$0" == "true"
+    liteFirewallW::RemoveRule "$INSTDIR\${FileMainEXE}" "${BrandShortName} ($INSTDIR)"
+  ${EndIf}
+SectionEnd
+
+################################################################################
+# Language
+
+!insertmacro MOZ_MUI_LANGUAGE 'baseLocale'
+!verbose push
+!verbose 3
+!include "overrideLocale.nsh"
+!include "customLocale.nsh"
+!verbose pop
+
+; Set this after the locale files to override it if it is in the locale. Using
+; " " for BrandingText will hide the "Nullsoft Install System..." branding.
+BrandingText " "
+
+################################################################################
+# Page pre, show, and leave functions
+
+Function un.preWelcome
+  ${If} ${FileExists} "$INSTDIR\distribution\modern-wizard.bmp"
+    Delete "$PLUGINSDIR\modern-wizard.bmp"
+    CopyFiles /SILENT "$INSTDIR\distribution\modern-wizard.bmp" "$PLUGINSDIR\modern-wizard.bmp"
+  ${EndIf}
+!ifdef MOZ_BITS_DOWNLOAD
+  BitsUtils::StartBitsServiceBackground
+!endif
+
+  ; We don't want the header bitmap showing on the welcome page.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_HIDE}
+
+  ${If} $ShouldPromptForRefresh == "1"
+    ; Note: INI strings added here (rather than overwriting an existing value)
+    ; should be removed in un.leaveWelcome, since ioSpecial.ini is reused
+    ; for the Finish page.
+
+    ; Replace title and body text
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 2" Text "$(UN_REFRESH_PAGE_TITLE)"
+    ; Convert to translate newlines, this includes $PLUGINSDIR internally.
+    !insertmacro INSTALLOPTIONS_WRITE_UNCONVERT "ioSpecial.ini" "Field 3" Text "$(UN_REFRESH_PAGE_EXPLANATION)"
+
+    ; Make room for the link and button
+    StrCpy $0 "148"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 3" Bottom  $0
+
+    ; Show the help link
+    IntOp $1 $0 + 14
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Type    "link"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Text    "$(UN_REFRESH_LEARN_MORE)"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Left    "120"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Top     $0
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Right   "315"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Bottom  $1
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Flags   "NOTIFY"
+
+    ; Show the refresh button.
+    IntOp $2 $1 + 14
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Type    "button"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Text    "$(UN_REFRESH_BUTTON)"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Left    "120"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Top     $1
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Right   "240"
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Bottom  $2
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 5" Flags   "NOTIFY"
+
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Settings" NumFields 5
+  ${EndIf}
+FunctionEnd
+
+Function un.ShowWelcome
+  ; The welcome and finish pages don't get the correct colors for their labels
+  ; like the other pages do, presumably because they're built by filling in an
+  ; InstallOptions .ini file instead of from a dialog resource like the others.
+  ; Field 2 is the header and Field 3 is the body text.
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 2" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 3" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ${If} $ShouldPromptForRefresh == "1"
+    ; Field 4 is the profile refresh help link
+    ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 4" "HWND"
+    SetCtlColors $0 SYSCLR:HOTLIGHT SYSCLR:WINDOW
+  ${EndIf}
+
+  ; We need to overwrite the sidebar image so that we get it drawn with proper
+  ; scaling if the display is scaled at anything above 100%.
+  ${un.ChangeMUISidebarImage} "$PLUGINSDIR\modern-wizard.bmp"
+FunctionEnd
+
+Function un.leaveWelcome
+  StrCpy $RefreshRequested "0"
+
+  ${If} $ShouldPromptForRefresh == "1"
+    ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Settings" "State"
+    ${If} $0 == "5"
+      ; Refresh button
+      StrCpy $RefreshRequested "1"
+    ${ElseIf} $0 == "4"
+      ; Launch refresh help link, stay on this page
+      Call un.LaunchRefreshHelpPage
+      Abort
+    ${EndIf}
+  ${EndIf}
+
+  ${If} ${FileExists} "$INSTDIR\${FileMainEXE}"
+    Banner::show /NOUNLOAD "$(BANNER_CHECK_EXISTING)"
+
+    ; If we already found a window once and we're checking again, wait for an
+    ; additional five seconds for the app to close.
+    ${If} "$TmpVal" == "FoundAppWindow"
+      Sleep 5000
+    ${EndIf}
+
+    ${PushFilesToCheck}
+
+    ${un.CheckForFilesInUse} $TmpVal
+
+    Banner::destroy
+
+    ; If there are files in use $TmpVal will be "true"
+    ${If} "$TmpVal" == "true"
+      ; If it finds a window of the right class, then ManualCloseAppPrompt will
+      ; abort leaving the value of $TmpVal set to "FoundAppWindow".
+      StrCpy $TmpVal "FoundAppWindow"
+
+      ${If} $RefreshRequested == "1"
+        ${un.ManualCloseAppPrompt} "${MainWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_REFRESH)"
+        ${un.ManualCloseAppPrompt} "${DialogWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_REFRESH)"
+      ${Else}
+        ${un.ManualCloseAppPrompt} "${MainWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_UNINSTALL)"
+        ${un.ManualCloseAppPrompt} "${DialogWindowClass}" "$(WARN_MANUALLY_CLOSE_APP_UNINSTALL)"
+      ${EndIf}
+      ; If the message window is not found set $TmpVal to "true" so the restart
+      ; required message is displayed.
+      ; In the case of a refresh request the restart required message will not be displayed;
+      ; we're not trying to change the installation, so files in use only matter if the
+      ; window is shown.
+      StrCpy $TmpVal "true"
+    ${EndIf}
+  ${EndIf}
+
+  ${If} $RefreshRequested == "1"
+    Call un.LaunchAppForRefresh
+    Quit
+  ${EndIf}
+
+  ${If} $ShouldPromptForRefresh == "1"
+    ; Remove the custom controls.
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Settings" NumFields 3
+    DeleteIniSec "$PLUGINSDIR\ioSpecial.ini" "Field 4"
+    DeleteIniSec "$PLUGINSDIR\ioSpecial.ini" "Field 5"
+  ${EndIf}
+
+  ; Bring back the header bitmap for the next pages.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_SHOW}
+FunctionEnd
+
+Function un.preConfirm
+  ; The header on the wizard pages doesn't get the correct text
+  ; color by default for some reason, even though the other controls do.
+  GetDlgItem $0 $HWNDPARENT 1037
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+  ; Hide unused subheader (to avoid overlapping moved header)
+  GetDlgItem $0 $HWNDPARENT 1038
+  ShowWindow $0 ${SW_HIDE}
+
+  ${If} ${FileExists} "$INSTDIR\distribution\modern-header.bmp"
+    Delete "$PLUGINSDIR\modern-header.bmp"
+    CopyFiles /SILENT "$INSTDIR\distribution\modern-header.bmp" "$PLUGINSDIR\modern-header.bmp"
+  ${EndIf}
+  ${un.ChangeMUIHeaderImage} "$PLUGINSDIR\modern-header.bmp"
+
+  ; Setup the unconfirm.ini file for the Custom Uninstall Confirm Page
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Settings" NumFields "3"
+
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Type   "label"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Text   "$(UN_CONFIRM_UNINSTALLED_FROM)"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Left   "0"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Top    "5"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 1" Bottom "15"
+
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" Type   "text"
+  ; The contents of this control must be set as follows in the pre function
+  ; ${MUI_INSTALLOPTIONS_READ} $1 "unconfirm.ini" "Field 2" "HWND"
+  ; SendMessage $1 ${WM_SETTEXT} 0 "STR:$INSTDIR"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" State  ""
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" Left   "0"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" Right  "-1"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" Top    "17"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" Bottom "30"
+  WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 2" flags  "READONLY"
+
+  ${If} "$TmpVal" == "true"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Type   "label"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Text   "$(SUMMARY_REBOOT_REQUIRED_UNINSTALL)"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Left   "0"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Right  "-1"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Top    "35"
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Field 3" Bottom "45"
+
+    WriteINIStr "$PLUGINSDIR\unconfirm.ini" "Settings" NumFields "3"
+  ${EndIf}
+
+  !insertmacro MUI_HEADER_TEXT "$(UN_CONFIRM_PAGE_TITLE)" ""
+
+  ; The Summary custom page has a textbox that will automatically receive
+  ; focus. This sets the focus to the Install button instead.
+  !insertmacro MUI_INSTALLOPTIONS_INITDIALOG "unconfirm.ini"
+  GetDlgItem $0 $HWNDPARENT 1
+  System::Call "user32::SetFocus(i r0, i 0x0007, i,i)i"
+  ${MUI_INSTALLOPTIONS_READ} $1 "unconfirm.ini" "Field 2" "HWND"
+  SendMessage $1 ${WM_SETTEXT} 0 "STR:$INSTDIR"
+  !insertmacro MUI_INSTALLOPTIONS_SHOW
+FunctionEnd
+
+Function un.onUninstSuccess
+  ; Send a ping at un.onGUIEnd, to avoid freezing the GUI.
+  StrCpy $ShouldSendPing "1"
+
+  ${If} ${Silent}
+    ; If this is a silent uninstall then un.onGUIEnd doesn't run, so do it now.
+    Call un.SendUninstallPing
+  ${EndIf}
+FunctionEnd
+
+Function un.preFinish
+  ; Need to give the survey (readme) checkbox a few extra DU's of height
+  ; to accommodate a potentially multi-line label. If the reboot flag is set,
+  ; then we're not showing the survey checkbox and Field 4 is the "reboot now"
+  ; radio button; setting it to go from 90 to 120 (instead of 90 to 100) would
+  ; cover up Field 5 which is "reboot later", running from 110 to 120. For
+  ; whatever reason child windows get created at the bottom of the z-order, so
+  ; 4 overlaps 5.
+  ${IfNot} ${RebootFlag}
+    WriteINIStr "$PLUGINSDIR\ioSpecial.ini" "Field 4" Bottom "120"
+  ${EndIf}
+
+  ; We don't want the header bitmap showing on the finish page.
+  GetDlgItem $0 $HWNDPARENT 1046
+  ShowWindow $0 ${SW_HIDE}
+FunctionEnd
+
+Function un.ShowFinish
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 2" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 3" "HWND"
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ; We need to overwrite the sidebar image so that we get it drawn with proper
+  ; scaling if the display is scaled at anything above 100%.
+  ${un.ChangeMUISidebarImage} "$PLUGINSDIR\modern-wizard.bmp"
+
+  ; Either Fields 4 and 5 are the reboot option radio buttons, or Field 4 is
+  ; the survey checkbox and Field 5 doesn't exist. Either way, we need to
+  ; clear the theme from them before we can set their background colors.
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 4" "HWND"
+  System::Call 'uxtheme::SetWindowTheme(i $0, w " ", w " ")'
+  SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+
+  ClearErrors
+  ReadINIStr $0 "$PLUGINSDIR\ioSpecial.ini" "Field 5" "HWND"
+  ${IfNot} ${Errors}
+    System::Call 'uxtheme::SetWindowTheme(i $0, w " ", w " ")'
+    SetCtlColors $0 SYSCLR:WINDOWTEXT SYSCLR:WINDOW
+  ${EndIf}
+FunctionEnd
+
+################################################################################
+# Initialization Functions
+
+Function .onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  ; We need this set up for most of the helper.exe operations.
+  ${UninstallOnInitCommon}
+FunctionEnd
+
+Function un.onInit
+  ; Remove the current exe directory from the search order.
+  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
+  System::Call 'kernel32::SetDllDirectoryW(w "")'
+
+  StrCpy $LANGUAGE 0
+  StrCpy $ShouldOpenSurvey "0"
+
+  ${un.UninstallUnOnInitCommon}
+
+  ; setup the application model id registration value
+  ${un.InitHashAppModelId} "$INSTDIR" "Software\Mozilla\${AppName}\TaskBarIDs"
+
+  ; Find a default profile for this install.
+  SetShellVarContext current
+  ${un.FindInstallSpecificProfile}
+  Pop $1
+  GetFullPathName $1 $1
+
+  ; If there is an existing default profile, offer profile refresh.
+  StrCpy $ShouldPromptForRefresh "0"
+  StrCpy $RefreshRequested "0"
+  ${If} $1 != ""
+    StrCpy $ShouldPromptForRefresh "1"
+  ${EndIf}
+
+  ; Load version info for uninstall ping (sent after uninstall is complete)
+  ReadINIStr $InstalledVersion "$INSTDIR\application.ini" "App" "Version"
+  ReadINIStr $InstalledBuildID "$INSTDIR\application.ini" "App" "BuildID"
+
+  !insertmacro InitInstallOptionsFile "unconfirm.ini"
+FunctionEnd
+
+Function un.GUIInit
+  ; Move header text down, roughly vertically centered in the header.
+  ; Even if we're not changing the X, we can't set Y without also setting X.
+  ; Child window positions have to be set in client coordinates, and these are
+  ; left-to-right mirrored for RTL.
+  GetDlgItem $0 $HWNDPARENT 1037
+  ; Get current rect in screen coordinates
+  System::Call "*(i 0, i 0, i 0, i 0) i .r2"
+  System::Call "user32::GetWindowRect(p $0, p $2)"
+  ; Convert screen coordinates to client coordinates (handles RTL mirroring)
+  System::Call "user32::MapWindowPoints(p 0, p $HWNDPARENT, p $2, i 2)"
+  System::Call "*$2(i . r3, i . r4, i, i)"
+  System::Free $2
+  ; Move down
+  ${DialogUnitsToPixels} 8 Y $1
+  IntOp $4 $4 + $1
+  ; Set position, 0x0015 is SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE
+  System::Call "user32::SetWindowPos(p $0, p 0, i $3, i $4, i 0, i 0, i 0x0015)"
+FunctionEnd
+
+Function .onGUIEnd
+  ${OnEndCommon}
+FunctionEnd
+
+Function un.onGUIEnd
+  ${un.OnEndCommon}
+
+  ${If} $ShouldOpenSurvey == "1"
+    ; Though these values are sometimes incorrect due to bug 444664 it happens
+    ; so rarely it isn't worth working around it by reading the registry values.
+    ${WinVerGetMajor} $0
+    ${WinVerGetMinor} $1
+    ${WinVerGetBuild} $2
+    ${WinVerGetServicePackLevel} $3
+    StrCpy $R1 "${URLUninstallSurvey}$0.$1.$2.$3"
+
+    ; We can't just open the URL normally because we are most likely running
+    ; elevated without an unelevated process to redirect through, and we're
+    ; not going to go around starting elevated web browsers. But to start an
+    ; unelevated process directly from here we need a pretty nasty hack; see
+    ; the ExecInExplorer plugin code itself for the details.
+    ; If we were the default browser and we've now been uninstalled, we need
+    ; to take steps to make sure the user doesn't see an "open with" dialog;
+    ; they're helping us out by answering this survey, they don't need more
+    ; friction. Sometimes Windows 7 and 8 automatically switch the default to
+    ; IE, but it isn't reliable, so we'll manually invoke IE in that case.
+    ; Windows 10 always seems to just clear the default browser, so for it
+    ; we'll manually invoke Edge using Edge's custom URI scheme.
+    ${If} ${AtLeastWin10}
+      ExecInExplorer::Exec "microsoft-edge:$R1"
+    ${Else}
+      ExecInExplorer::Exec "iexplore.exe" /cmdargs "$R1"
+    ${EndIf}
+  ${EndIf}
+
+  ; Finally send the ping, there's no GUI to freeze in case it is slow.
+  ${If} $ShouldSendPing == "1"
+    Call un.SendUninstallPing
+  ${EndIf}
+FunctionEnd
diff --git a/browser/installer/windows/nsis/updater_append.ini b/browser/installer/windows/nsis/updater_append.ini
new file mode 100644
index 0000000000..af7742c12c
--- /dev/null
+++ b/browser/installer/windows/nsis/updater_append.ini
@@ -0,0 +1,12 @@
+
+; IMPORTANT: This file should always start with a newline in case a locale
+; provided updater.ini does not end with a newline.
+; Application to launch after an update has been successfully applied. This
+; must be in the same directory or a sub-directory of the directory of the
+; application executable that initiated the software update.
+[PostUpdateWin]
+; ExeRelPath is the path to the PostUpdateWin executable relative to the
+; application executable.
+ExeRelPath=uninstall\helper.exe
+; ExeArg is the argument to pass to the PostUpdateWin exe
+ExeArg=/PostUpdate
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
commit	43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree	620249daf56c0258faa40cbdcf9cfba06de2a846 /browser/installer/windows/nsis
parent	Initial commit. (diff)
download	firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip