As for sites that don't work in FireFox, here's a huge one: Office365 does not support FireFox on MacOS[0]. Mostly it works, but some things unfortunately don't

As for sites that don't work in FireFox, here's a huge one: Office365 does not support FireFox on MacOS[0]. Mostly it works, but some things unfortunately don't. For instance, my employer's Teams site just doesn't render at all in FF. [0]: https://support.microsoft.com/en-us/office/which-browsers-work-with-microsoft-365-for-the-web-and-microsoft-365-add-ins-ad1303e0-a318-47aa-b409-d3a5eb44e452 https://support.microsoft.com/en-us/office/which-browsers-wo...