MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Same problem here. Exactly the same error message with chrome and Firefox, both on Windows 10 and KUbuntu 16.10.
Getting the same off topic safari message.
And no reply.
I'm worried when I see the problem seven monthes after your message.