Passwordless in Chrome Works, Firefox Fails

I am creating a passwordless workflow in our React App that sends a magic link from our .NET backend to a user after filling in a form. In Chrome, when a user clicks the email link, everything works exactly as it is supposed to and our History for the user looks like this:

But doing the same process in Firefox causes a Failed Login. Any ideas why??? I feel like it must be an authentication parameter sent through the magic link, but I have no idea which one would do this. The actual error is “Wrong email or verification code.”

I don’t know if this is perhaps a SameSite issue disguising itself as a Failed Login, because Firefox is giving me lots of these errors as well:

Any insights would be greatly appreciated!