Can't access Accor Hotels website using Firefox but can with Chrome. Any suggestion please?

Hi, I don't understand why I can't access the Accor Hotels website using my preferred browser, Firefox. I'm using an iMac with OS Catalina v 10.15.7 and Firefox 147.0.1 (64 bit) I can access the site using Chrome. Chrome version is 'This computer is using macOS 10.15. Learn more Version 128.0.6613.138 (Official Build) (x86_64)' I've checked every Firefox setting I can think of, passwords etc. but the site freezes. Please see attached screenshot. Accor tech support say they have no problem at their end. This is the link to Accor - https://login.accor.com/as/authorization.oauth2?client_id=all.accor&response_type=code&persistent=yes&accorregister=true&origin=LOGIN&request=eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJjbGllbnRfaWQiOiJhbGwuYWNjb3IiLCJyZXNwb25zZV90eXBlIjoiY29kZSIsInJlZGlyZWN0X3VyaSI6Imh0dHBzOi8vYWxsLmFjY29yLmNvbS9sb3lhbHR5LWZ1bm5lbC9jaGVjay1hdXRoZW50Lmh0bWw_YXBwSWQ9YWxsLmFjY29yIiwic2NvcGUiOiJvcGVuaWQgQVBJV0VCLlVTRVIuQUxMIEFQU1IuQUxMIiwidWlfbG9jYWxlcyI6ImVuIiwic3RhdGUiOiI1ZjcwNzA5NjdiNWVkODBjYWZmOGY5Iiwibm9uY2UiOiJjNmNhYzBlMzQ4Zjk1NmNlMGQxNWE2IiwiZXhwIjoxNzY5MjY0NTMyLCJpYXQiOjE3NjkyNjI3MzJ9.DrUJZC2GmtZoLJAWv7lYORQij3C0tcwq4bGNezAINae8_qSHgs4hOKKiq0Cso6sJnhODcMeyrMOP-v1uZBR4Lt0NMpW-8CmprMoSmtORWrD5lWngZg2_3W4gfWViC_Phkj5tVzxdpMx5UoRWC-zvALjP_PNhE4Ca70UnRnvqDi4LFdOYZm4S52kqn_TBQq2VtSzRlLJZwBwAKUIgQG7fYaLknLXnbTd9zKSGHlwEAeO94Y6o59sQ3fHFWrWqjuJFbEl1MJEPu0tPJREmy4D70LkpV8N3TTMfDNzG0O_eLj4wX9Mipv8Q9jdOoTG8wodT5zXLkL0mRYlcdygo_MacIQ&redirect_site_uri=https%3A%2F%2Fall.accor.com%2Fa%2Fen.html%3Futm_term%3Dmar%26gclid%3DEAIaIQobChMI6r3v44eOkgMV1SV7Bx2bTCqUEAAYASAAEgJojfD_BwE%26utm_campaign%3Dppc-ach-mar-goo-uk-en-pure-mix-sear-%26utm_medium%3Dcpc%26utm_source%3Dgoogle%26utm_content%3Duk-en-ALL-ALL Other sites all seem to work ok. Any ideas pleas on why just this website and how I can access it without having to swap browser?