diff --git a/mozilla/browser/app/nsBrowserApp.cpp b/mozilla/browser/app/nsBrowserApp.cpp
index 404c34d5556..9ff1a696858 100644
--- a/mozilla/browser/app/nsBrowserApp.cpp
+++ b/mozilla/browser/app/nsBrowserApp.cpp
@@ -45,7 +45,11 @@
 
 static const nsXREAppData kAppData = {
   "Mozilla",
+#ifdef DEBUG
+  "Firefox Debug",
+#else
   "Firefox",
+#endif
   APP_VERSION,
   BUILD_ID,
   "Copyright (c) 2004 mozilla.org",