diff --git a/org.adempiere.ui.zk/WEB-INF/src/metainfo/zk/lang-addon.xml b/org.adempiere.ui.zk/WEB-INF/src/metainfo/zk/lang-addon.xml
index 3219dbe872..0ccedf0dbc 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/metainfo/zk/lang-addon.xml
+++ b/org.adempiere.ui.zk/WEB-INF/src/metainfo/zk/lang-addon.xml
@@ -38,6 +38,7 @@ Copyright (C) 2007 Ashley G Ramdass (ADempiere WebUI).
 	<javascript src="/js/persist-min.js" charset="UTF-8"/>
 	<javascript src="/js/token.js" charset="UTF-8"/>
 	<javascript src="/js/window.js" charset="UTF-8"/>
+	<javascript src="/js/jquery-patch.js" charset="UTF-8"/>
 	
 	<javascript package="jawwa.atmosphere" merge="false" />
 	
diff --git a/org.adempiere.ui.zk/WEB-INF/zk.xml b/org.adempiere.ui.zk/WEB-INF/zk.xml
index be0e3bf04f..877f0ddeb7 100644
--- a/org.adempiere.ui.zk/WEB-INF/zk.xml
+++ b/org.adempiere.ui.zk/WEB-INF/zk.xml
@@ -25,7 +25,7 @@
 
 	<!--  change to false to use compress js which is much smaller -->
 	<client-config>
-		<debug-js>false</debug-js>
+		<debug-js>true</debug-js>
 		<processing-prompt-delay>500</processing-prompt-delay>
 	</client-config>
 
diff --git a/org.adempiere.ui.zk/js/jquery-patch.js b/org.adempiere.ui.zk/js/jquery-patch.js
new file mode 100644
index 0000000000..7699aeda63
--- /dev/null
+++ b/org.adempiere.ui.zk/js/jquery-patch.js
@@ -0,0 +1,27 @@
+//patch for jquery bug under firefox
+(function(undefined) {
+var rupper = /([A-Z]|^ms)/g;
+if ( document.defaultView && document.defaultView.getComputedStyle ) {
+	getComputedStyle = function( elem, name ) {
+		var ret, defaultView, computedStyle;
+
+		//added try catch for firefox
+		try {
+			name = name.replace( rupper, "-$1" ).toLowerCase();
+	
+			if ( !(defaultView = elem.ownerDocument.defaultView) ) {
+				return undefined;
+			}
+		
+			if ( (computedStyle = defaultView.getComputedStyle( elem, null )) ) {
+				ret = computedStyle.getPropertyValue( name );
+				if ( ret === "" && !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {
+					ret = jQuery.style( elem, name );
+				}
+			}
+		} catch (err) {}
+
+		return ret;
+	};
+}
+})();
\ No newline at end of file