diff --git a/toolkit/components/search/nsSearchService.js b/toolkit/components/search/nsSearchService.js
index 7eebfce527f..fb9fedd0dc4 100644
--- a/toolkit/components/search/nsSearchService.js
+++ b/toolkit/components/search/nsSearchService.js
@@ -411,7 +411,12 @@ function getIsUS() {
     geoSpecificDefaults = Services.prefs.getBoolPref("browser.search.geoSpecificDefaults");
   } catch(e) {}
 
-  if (!geoSpecificDefaults) {
+  let distroID;
+  try {
+    distroID = Services.prefs.getCharPref("distribution.id");
+  } catch (e) {}
+
+  if (!geoSpecificDefaults || distroID) {
     return false;
   }