@avl said in Google sites (some) not working in Opera 53.0.2907.68:

Have you tried disabling your installed extensions?

Yes.

I tried with a new profile with no extension but did not connect.

Now I discovered that sites that use recaptcha didn't work too.

Soon the new MacOS Mojave will be released then I will try a clean install of MacOS with a new install of Opera, to see if work.

Thanks for your help.