SAP NWBC for HTML - Web Browser Support on MacOS and Linux

We are implementing SAP SRM 7.0 Enh2. We would like to avoid implementation of SAP NW Portal to access SRM application in the Self Service Procurement Scenarios. The alternative is to use SAP NWBC for HTML.

However, we saw in the SAP Netweaver 7.03 PAM (on which SAP SRM 7.02 is based) that SAP NWBC for HTML access through Firefox and Safari is not supported on MacOS and Linux client platforms (only on Windows client platforms).

In note 1620576, it is not stated clearly that SAP NWBC for HTML is not supported on MacOS and Linux.

Is there an official statement from SAP about the support of Firefox on MacOs and Linux client platforms for SAP NWBC 3.5 for HTML?

Thanks for your support

Regards