I have run Opera on Windows XP and Windows 7 with no problems. Now I have installed on it a new Windows 10 computer. If I try to get into Gmail, I get an error that Gmail cannot set cookies. I followed the suggestios taht it made, like clearing cache and making www.google.com a security exception that is allowed. I cleared cache, closed the browser and restarted it. I have it running on 64-bit Windows 10. I've read threads on this issue here that are two or more years old.
I have used Gmail in Opera before without a problem.
Any suggestions?? Thanks.