Turns out the problem is with the way the vmware site uses SSL. To fix, follow the below steps:
1. In Firefox, type "about:config" in the address bar.
2. Type "ssl2" in the filter field.
"security.enable_ssl2" should be the first result.
3. Doubleclick "security.enable_ssl2". The value should equal "true".
Restart Firefox, and enjoy managing your VMWare server!