Well that’s certainly strange. Do you get this behavior when you try to visit Coinbase in a Private window as well?
Might be malware.
Download Malwarebytes and scan your PC, if on android try Kaspersky, Bitdefender, Hypatia.
No malware was detected. I cleared the entire browser history, deleted all cookies and now it works fine
@Difi Try this
I tried this yesterday and this worked right away.
Everything in a private browser worked without problems
@Difi Have you installed an extension recently?
Disable all your extensions an open coinbase normally.