diff --git a/toolkit/mozapps/installer/windows/nsis/common.nsh b/toolkit/mozapps/installer/windows/nsis/common.nsh
index e83636440..e7bf34bff 100644
--- a/toolkit/mozapps/installer/windows/nsis/common.nsh
+++ b/toolkit/mozapps/installer/windows/nsis/common.nsh
@@ -5581,21 +5581,6 @@
       StrCpy $INSTDIR "$R9"
 !endif
 
-      ; If the user doesn't have write access to the installation directory set
-      ; the installation directory to a subdirectory of the All Users application
-      ; directory and if the user can't write to that location set the installation
-      ; directory to a subdirectory of the users local application directory
-      ; (e.g. non-roaming).
-      ${CanWriteToInstallDir} $R9
-      StrCmp "$R9" "false" +1 finish_check_install_dir
-
-      SetShellVarContext all      ; Set SHCTX to All Users
-      StrCpy $INSTDIR "$APPDATA\${BrandFullName}\"
-      ${CanWriteToInstallDir} $R9
-      StrCmp "$R9" "false" +2 +1
-      StrCpy $INSTDIR "$LOCALAPPDATA\${BrandFullName}\"
-
-      finish_check_install_dir:
       IfFileExists "$INSTDIR" +3 +1
       Pop $R9
       Return