Here is a link which provide some solution work on that: http://www.devtoolshed.com/content/fix-firefox-click-event-issue, May 30, 2014 02:18 AM|Prince Srivastava|LINK, $(#'<%=btn.ClientId %>').click(function(){. Use the .on jQuery function to add events to the page. May 30, 2014 01:56 AM|Kevin Shen - MSFT|LINK. Article Copyright 2013 by Noor Ahmad Feroozi, JavaScript function to call inside UpdatePanel, ASP.NET UpdatePanel control to refresh page without post back, Content template to put all ASP.NET controls for AJAX. The issue is very easily fixed though, understanding why … And the ul forms the jQuery tabs. UpdatePanel controls refresh only selected part of the page instead of refreshing the whole page with a post back.