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.
To be fair, it does not "incorrectly identify your browser as Safari". It offers you a fix in case you are using Safari, hence the text "It is also possible that you are using Safari, if so (...)"
That being said, no luck on either Chrome or FF.