I’ve been working on a testcase for Mozilla bug 163174 to help improve the various pointer styles available in Mozilla. For tests and examples of pretty much every known CSS2 and CSS3 cursor style, see my CSS cursor testcase. It’s nice that Mozilla 1.4 unexpectedly supports a number of “proprietary” cursor styles, but it would be less necesary if they’d just fix bug 38447. Indeed, the discussion in bug 189719 that added the zoom in and zoom out styles said as much.