It is implemented in Chrome Canary
It would seem that editing passwords are the simplest and most convenient function that should be in any browser. But in fact, for some reason, manufacturers are in no hurry to implement it, offering only to update the previously memorized password. Fortunately, Chrome will fix this problem soon.
Passwords can finally be edited. Chrome has a feature many have been waiting for
More precisely, it has already been solved in Chrome Canary, an experimental version of the browser. By activating the corresponding menu item in the settings, the user can edit any of the saved passwords – the corresponding menu item appears to the right of the password by pressing the button with three dots.