Autocomplete broken in Firefox

Autocomplete broken in Firefox

I upgraded to the new UI and I am having a problem that is only happening in Firefox but not IE 10 or Chrome.

I am using the Autocomplete in ASP.NET and during the select I call this:

  1. select: function (event, ui) {                     var submitpostaback = $('#hidSubmitPostback_PemitMain').val();                     $('#hidSelectedValue_PemitMain').val(ui.item.value);                     $('#txtQuickSearch_PemitMain').val(ui.item.value);                     if (submitpostaback == 'TRUE') {                         if (ui.item) {                             javascript: __doPostBack('<%= btnQuckSearch.UniqueID %>', '');                         }                     }                 }
The problem is that the POSTBACK never happens.  I want to postback automatically to ASP.NET to process the selected item.  This has worked in all browsers until the latest update.  Now it only fails in Firefox?

Any suggestions?