CSS:-moz-grabbing
From MDC
« CSS Reference:Mozilla Extensions
This is a cursor value that Mozilla products use to indicate that an element or an object in a webpage is actually being grabbed, is actually being moved and repositioned in drag-and-drop DHTML snippet.
The -moz-grabbing cursor looks like a normal hand with its 5 fingers contracted, like a fist.
On the Windows platform, the -moz-grabbing cursor looks like this:
This cursor value is a proprietary extension; there is no CSS equivalent to this cursor. The natural complementary cursor value for -moz-grabbing is -moz-grab. Together, these 2 cursor values are graphically very intuitive.