Note  Please see the Version 7.8 Content Gateway Release Notes for the most up-to-date information.

Browser/ Operating System	Internet Explorer (v10 and 11 tested)	Firefox	Chrome	Opera (v12.02 tested)	Safari (v6.02 tested)
Windows	Performs transparent authentication	Performs transparent authentication (v28 tested)	Performs transparent authentication (v33 and 34 tested)	Falls back to NTLM and prompts for credentials	Falls back to NTLM and prompts for credentials
Mac OS X	Not applicable	Performs transparent authentication (v28 tested)	Performs transparent authentication (v33 and 34 tested)	Not tested.	Performs transparent authentication
Red Hat Enterprise Linux, update 6	Not applicable	Performs transparent authentication (v28 tested)	Explicit proxy: Performs transparent authentication. Transparent proxy: Falls back to NTLM and prompts for credentials. (v33 and 34 tested)	Not tested.	Not applicable