JQuery 1.8 Ajax with FireFox 14.0.1

JQuery 1.8 Ajax with FireFox 14.0.1

Hi!
I have problem with JQuery 1.8 (and 1.7.2) Ajax with FireFox 14...
1 - I'm calling a webservice to return a JSON object to me... this object contain a text html
2 - I'm show this text in a window... In this window I have two buttons... 'I agree' and 'Don´t agree'.
3 - If the user click in 'I agree', the window is closed and is call the function 'Save' of the parent window.

But, when I click in 'I agree', in FireFox, I get this message: 


A script on this  page  may  be running or  stopped responding.
You can stop it now or continue to see if it finishes execution.

 


I'm calling the webservice this way:
  1. $.ajax({
  2.         type: "POST",
  3.         url: '/app/mzword/mzword.asmx/getDocument',
  4.         data: { pCodiMDoc: 0, pContexto: 'Agenda de Salas', pRelacaoAuxiliar: '' },
  5.         contentType: "application/json; charset=utf-8",
  6.         dataType: "json",
  7.         success: function (data) {
  8.             $.ajax({
  9.                     type: "POST",
  10.                     url: '/app/tools/ajaxscriptbridge.asmx/saveObject_AgendamentosSalasSGE_DAL',
  11.                     data: { objDAL: wnd.myObj },
  12.                     contentType: "application/json; charset=utf-8",
  13.                     dataType: "json",
  14.                     success: function (data) {
  15.                           wnd.close(); //wnd is a window
  16.                          parentWnd.save(); //parentWindow save function is called
  17.                     },
  18.                     error:  function (data) {alert('error!!!'}
  19.     });
  20.             
  21.         },
  22.         error:  function (data) {alert('error!!!'}
  23.     });