CSS:-moz-alias
From MDC
« CSS Reference:Mozilla Extensions
This is a cursor value that Mozilla used before CSS 3 cursor: alias was implemented. Since Gecko 1.8a6 (December 2004), CSS 3 cursor alias is supported and rendered properly, so there's no need to use cursor: -moz-alias in newer stylesheets.
The -moz-alias cursor value is used to indicate an alias or shortcut to something that is to be created. The -moz-alias cursor (just like the alias cursor) is rendered as an arrow with a small curved arrow next to it.
On the Windows platform, the -moz-alias cursor value can (could?) look like this:
Related bugzilla item: Bug 163174: Support CSS3 cursors