diff --git a/db.json b/db.json
index 76daa24..efe6da9 100644
--- a/db.json
+++ b/db.json
@@ -2,7 +2,8 @@
     "firefox": {
 	"version": "52.0.9",
 	 "source": "https://ftp.mozilla.org/pub/firefox/releases/52.9.0esr/win32/en-US/Firefox%20Setup%2052.9.0esr.exe",
-	 "remover": "C:\\Program Files\\Mozilla Firefox\\uninstall\\helper.exe"
+	 "remover": "C:\\Program Files\\Mozilla Firefox\\uninstall\\helper.exe",
+	 "isUninstallerByNullsoft":  true
     },
     "emacs": {
         "version": "27.2",