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 (v11 tested)	Performs transparent authentication (v53 tested)	Performs transparent authentication (v58 tested)	Performs transparent authentication	Falls back to NTLM and prompts for credentials
Mac OS X	Not applicable	Performs transparent authentication (v54 tested)	Falls back to NTLM and prompts for credentials (v55.0 tested)	Falls back to NTLM and prompts for credentials (v46 tested)	Performs transparent authentication (v10 tested)
Red Hat Enterprise Linux, update 6	Not applicable	Performs transparent authentication (v45 tested)	Browser issue prevents IWA from working	Not tested.	Not applicable