I did update NC to 17. There was incompatibility with passman. I did wait for update of passman app a week. It is 2.3.5 now and works OK.
But my browser (firefox in my case) extension is not seeing any passowrds. So I did delete account and then add it back to extension. I did enter login and password to access NC and then extension did not show any vault. What can be a problem?