Username or EmailPassword
Not for me, or at least last time I checked a 9.x version. For instance, I have some appliances that I manage. Because of their location in the environment, I have to tunnel through a jumpbox to access the gui. This of course changes the real address I am accessing from my local machine to say https://127.0.0.1:5555. Opera flat out tells me the cert is invalid, with no chance to accept the cert with the mismatching...Why? (shrug) you got me. Work's fine for literally every other browser on Windows and Linux I've used, only Opera bombs out.
The cert problem I've seen with Opera 9.5b but with the current production model (9.25), there's no issue. I just chalked it up to a bug in the beta.