Copy saved password bookmarklet

README.md

Created bookmarklet with http://ted.mielczarek.org/code/mozilla/bookmarklet.html

copy-password.js

// Get non-empty, visible password fields
var fields = [...document.querySelectorAll('[type=password]')].filter(f => f.value && f.offsetParent);
var cpy = field => {
  field.type = '';
  field.select();
  document.execCommand('copy');
  field.type = 'password';
}
if (fields.length === 1) {
  cpy(fields[0]);
} else {
  document.body.addEventListener('click', e => {
    cpy(e.target);
  });
}