I was trying to add some basketball tickets to my apple wallet but wasn't able to. Had to switch to Safari and was then able to add them to my wallet. I haven't had a problem adding airline tickets to my apple wallet with Firefox as my default browser, but couldn't add basketball tickets from an email link with Firefox as default browser. Switched to Safari and then had no problem. Can this issue be fixed with Firefox browser or will I have to switch back to using Safari?