Note  Please see the Web Protection Solutions Release Notes for the most up-to-date information.

Browser/ Operating System	Internet Explorer (v10 and 11 tested)	Firefox	Chrome	Opera	Safari
Windows	Performs transparent authentication	Performs transparent authentication (v28, 32 tested)	Performs transparent authentication (v34, 35, 38 tested)	Performs transparent authentication (v24 tested)	Falls back to NTLM and prompts for credentials (v5.34.57 tested)
Mac OS X	Not applicable	Performs transparent authentication (v28, 32 tested)	Falls back to NTLM and prompts for credentials (v38 tested)	Falls back to NTLM and prompts for credentials (v20 tested)	Performs transparent authentication (v7.0.2 tested)
Red Hat Enterprise Linux, update 6	Not applicable	Performs transparent authentication (v28 tested)	Browser issue prevents IWA from working (v34, 35 tested)	Not tested.	Not applicable