chrome-global-content-console-xul.css

@-moz-document regexp('chrome://global/content/console\\.xul') {

box.console-row {overflow-x:auto; min-height:103px;}  /* works */
  
box.console-row .console-row-content {overflow-x:auto;} /* works */
  
box.console-row[type='warning'] .console-row-content {min-height:94px}
box.console-row[type='error'] .console-row-content {min-height:72px}

box.console-row[type='error'] .console-error-msg, box.console-row .console-row-msg {font-size:100%;}

.console-code {overflow-x:auto; min-height:16px;}

}