This is a sporadic error that I have seen in Firefox browsers while using the Ext JS components. ��� �� ����� �������� ���� ���� �� ����� �������� �� ������� ����� ����� ������� JS. It is not harmful in any way but is annoying. ���� ���� ���� ��� ��� �� ������� ����� ����. It is filed as a ��� ��� ����� Firefox defect ��� �������� and has been fixed for 3.0a5pre. ����� �3.0a5pre. In the earlier version here is how you can fix it for Firefox. �� ������ ������� ��� �� ��� ���� ������� ���������.

Adding ����� autocomplete="off" = ����� ������ "��" to all the text fields will fix it. �� ����� �������� ���� ����� �����. It is an internal Firefox error and causes no problem as such. ��� ��� ����� �������� ������ �� ����� ��� ��� �����. Personally I am choosing to ignore it. ���� ����� ��� ������ ������.