diff --git a/grunt/configBridge.json b/grunt/configBridge.json
index c6d6164841d7025cceb34f64bb7568d00a35ccef..54fa7cef45ad93a4f22791fa93b13522ed0de368 100644
--- a/grunt/configBridge.json
+++ b/grunt/configBridge.json
@@ -11,7 +11,7 @@
       "Android 2.3",
       "Android >= 4",
       "Chrome >= 20",
-      "Firefox >= 24",
+      "Firefox >= 31",
       "Explorer >= 9",
       "iOS >= 6",
       "Opera >= 12",
@@ -31,4 +31,4 @@
       "}(jQuery);\n\n"
     ]
   }
-}
\ No newline at end of file
+}