Some password databases involve copy and pasting or autotyping. If you want automatic hostname verification you need a password database integrated with your browser. On mobile many browsers don't support extensions so integrating my password database into the browser would be hard.
In short, I do not know my ebay password, but I could have fallen for this phishing attack.
On mobile this is possible even without browser extensions - enpass, lastpass etc work just fine in Chrome or any other app, if it detects a password field.