Workflow Builder 2.6.3 is now certified on Windows 10 desktops for Oracle E-Business Suite 12.1 and 12.2. See:
Windows Compatibility Mode
Workflow Builder 2.6.3 is a 32-bit application that can be installed on 32-bit and 64-bit Windows 10 versions. Workflow Builder 2.6.3 must be installed with "Windows compatibility mode" set to "Windows XP (Service Pack 2)" or "Windows XP (Service Pack 3)".
Mozilla Firefox Quantum Extended Support Release 60 is certified as a macOS-based client browser on macOS High Sierra (macOS 10.13) for...