--- a/browser/installer/windows/msi/installer.wxs
+++ b/browser/installer/windows/msi/installer.wxs
@@ -55,23 +55,23 @@
        directory settings though, we can't put them on the command line with the
        default values those properties have, so we need a separate action for
        each possible configuration of those settings, and conditions to select
        the right action to use based on which properties are configured.
        WiX throws warning LGHT1076 complaining that these command strings are
        too long, but they actually work just fine, the warning is spurious. -->
   <CustomAction Id="RunInstallNoDir" Return="check" Execute="deferred"
                 HideTarget="no" Impersonate="no" BinaryKey="WrappedExe"
-                ExeCommand="/S /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOTE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
+                ExeCommand="/S /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOVE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
   <CustomAction Id="RunInstallDirPath" Return="check" Execute="deferred"
                 HideTarget="no" Impersonate="no" BinaryKey="WrappedExe"
-                ExeCommand="/S /InstallDirectoryPath=[INSTALL_DIRECTORY_PATH] /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOTE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
+                ExeCommand="/S /InstallDirectoryPath=[INSTALL_DIRECTORY_PATH] /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOVE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
   <CustomAction Id="RunInstallDirName" Return="check" Execute="deferred"
                 HideTarget="no" Impersonate="no" BinaryKey="WrappedExe"
-                ExeCommand="/S /InstallDirectoryName=[INSTALL_DIRECTORY_NAME] /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOTE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
+                ExeCommand="/S /InstallDirectoryName=[INSTALL_DIRECTORY_NAME] /TaskbarShortcut=[TASKBAR_SHORTCUT] /DesktopShortcut=[DESKTOP_SHORTCUT] /StartMenuShortcut=[START_MENU_SHORTCUT] /MaintenanceService=[INSTALL_MAINTENANCE_SERVICE] /RemoveDistributionDir=[REMOVE_DISTRIBUTION_DIR] /PreventRebootRequired=[PREVENT_REBOOT_REQUIRED] /OptionalExtensions=[OPTIONAL_EXTENSIONS] /LaunchedFromMSI" />
   <CustomAction Id="RunExtractOnly" Return="check" Execute="deferred"
                 HideTarget="no" Impersonate="no" BinaryKey="WrappedExe"
                 ExeCommand="/ExtractDir=[EXTRACT_DIR]" />
 
   <!-- When we run the custom actions is kind of arbitrary; this sequencing gets
        us the least confusing message showing in the MSI progress dialog while
        the installer runs. Our actions don't need to be sequenced relative
 	   to one another because only one will ever run. -->