diff --git a/wise-webapp/src/main/java/com/wisemapping/filter/SupportedUserAgent.java b/wise-webapp/src/main/java/com/wisemapping/filter/SupportedUserAgent.java
index 9b1d64bd..3b51eee1 100644
--- a/wise-webapp/src/main/java/com/wisemapping/filter/SupportedUserAgent.java
+++ b/wise-webapp/src/main/java/com/wisemapping/filter/SupportedUserAgent.java
@@ -48,6 +48,7 @@ public class SupportedUserAgent implements Serializable {
         boolean result = browser == Browser.FIREFOX && majorVersion >= 10;
         result = result || browser == Browser.FIREFOX2 && majorVersion >= 17;
         result = result || browser == Browser.FIREFOX3 && majorVersion >= 29;
+        result = result || browser == Browser.FIREFOX4 && majorVersion >= 40;
         result = result || browser == Browser.IE8 || browser == Browser.IE9 || browser == Browser.IE11 ;
         result = result || browser == Browser.IE && majorVersion >= 8;
         result = result || browser == Browser.OPERA10 && majorVersion >= 11;