With the number of people concerned about privacy, it is a wonder why chrome is even popular.
I’ve had issues with education based things not working on Firefox. It’s probably anti cheating stuff that is set up to work with chrome and they don’t want to bother with making it function on a less used browser. I had a problem using a government website on firefox too. I had to verify my ID to request some vet records and the ID verification required Chrome or Opera.
ID.me is certainly an experience, assuming that’s what you had to use. I had to use it to access the IRS website once, and they made me jump through quite a few hoops to verify my identity. I was trying to login on my computer, but they made me take pics of my driver’s license through a webpage link they texted to my phone.