I’ve had a few issues recently opening a VMWare Server 2.0 web based console with Firefox 3.07 running on OpenSUSE 11.1. The console session just didn’t appear, which is a problem when you can’t SSH into the target VM due to lack of networking. The answer is obscure but works well:
VMWARE_USE_SHIPPED_GTK=TRUE firefox &
With this, the console works correctly as expected. Lovely.