@albone61, after upgrade from old version of Opera Mini your passwords should be saved, however only in Opera Mini mode. If you switch to Opera Turbo or No compression modes passwords will not be autofilled - you need to enter them again, but you can save it again and it will be autofilled in the future. If for some reason you can't save password on some sites or your old passwords were destroyed with upgrade, please let us know by filling bug report form on https://mini.bugs.opera.com