I am getting the error message in Firefox Mozilla 31.0 when we double click on page navigation "last" page >> link..
Application is working perfectly fine with single click in Firefox Mozilla 31.0 and IE 11.
Double click causes application is show error message.
I have also customized the page navigation API and override the PagingNavigator.java and its html file.
I have also ovrriden the updateAjaxAttributes method in our CustomPagingNavigator.java