"Browser-friendly" code with the Netscape security package

Write "other-browser-friendly" code when using the Netscape Capabilities package

Use a combination of try/catch when enabling a privilege.

try {
  try {
     netscape.security.PrivilegeManager.enablePrivilege
          ("UniversalTopLevelWindow");
     } 
  catch(netscape.security.ForbiddenTargetException e) {
     }
  } 
catch(NoSuchMethodError e) {
  /* 
  ** add here code required by IE or 
  ** any other supported browser 
  */
}