Concerning *"*no work on updated Safari -- VG w/ Firefox (MacBook Pro <
one year purchase)", from the glowscript.org Help:
*
Safari*: To activate WebGL in Safari 5.1 (included with OSX Lion), go to
the Advanced section of Safari preferences and check "Show Develop menu in
menu bar", then on the Develop menu check "Enable WebGL". Prior to Safari
5.1, to get WebGL required downloading and installing WebKit from Apple ( http://nightly.webkit.org).