Yubikey + Firefox: "Didn't get PublicKeyCredential from get()"

Sometimes when going to the Login-Page I receive an alert message

```
# Login failed
Didn't get PublicKeyCredential from get()
```

- Almost everytime when I log out
- Sometimes when I press "refresh" on the login page

I use an yubikey as TFA

Firefox 143.0.3 (aarch64)