Postbacks on Firefox and Netscape browsers do not work correct

This will only happen if the <base> tag rendering using the RobotMetaTag control has been disabled. As a workaround either enable the <base> tag rendering or (if this is not an option) add the following javascript code behind the form tag of your template:

<script language="javascript">
    if (window.navigator.appName.toLowerCase().indexOf("microsoft") == -1
    && typeof __CMS_PostbackForm.onsubmit == "undefined")
    {
         __CMS_PostbackForm.onsubmit = null;
    }
</script>

The hotfix to resolve this problem has been released and can be requested from Microsoft Support as KB 914782