Could this be related to Third-Party Cookies and Tracking Protection? I think that's turned "on" by default on Firefox, no? Some Microsoft products refuse to w

Could this be related to Third-Party Cookies and Tracking Protection? I think that's turned "on" by default on Firefox, no? Some Microsoft products refuse to work on Safari and Firefox for me unless you disable the protection. It's not really well documented, I found this info in some forum posts.