This might be a RBAC issue; I can't authenticate to do CUPS administration. I've attempted to use root, my user name (since I can use pfexec to do admin stuff), and ran firefox with root permissions. The browser brings up the username/password box whenever settings are going to be written but it never accepts.
Using snv_93, CUPS 1.3.7-0.93 CUPS is necessary since it supports zeroconf. This message posted from opensolaris.org