I have been trying to log in to a newspaper website for which I have a subscription. This used to work in Firefox without a problem, but for a while now I have been encountering the problem that when I open the website the usual options "Subscribe" and "Log In" are missing. The "Log In" option is available when I open the website in Microsoft Edge. I have attached screenshots showing the missing links.

I have tried troubleshooting and opening in Safe Mode to disable any add-ons but still without success. I am hoping that there may be a simple solution and would appreciate any help.