Prompt to confirm close window after modifying Password Entry/Password List

There is no confirmation before closing a window when you modify a password entry or a password list entry so if you change something in a password list for example and you click ok for each entry but then click the x or cancel on the actual list then you just lose everything without notification or way to know that it wasnt saved.

A simple prompt to notify that something was changed and ask to save changes or discard before exiting with the (x) or clicking cancel in those windows would be awesome.