Code not working in Firefox

var message = '';
var student;
var search;

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}

function getStudentReport( student ) {
  var report = '<h2>Student: ' student.name + '</h2>';
  report += '<p>Track: ' + student.track + '</p>';
  report += '<p>Points: ' + student.points + '</p>';
  report += '<p>Achievements: ' + student.achievements + '</p>';
  return report;
}

while (true) {
  search = prompt('Search students records: type a name (or "quit" to end) ');
  if (search === null || search.toLowerCase() === 'quit') { 
    break;
  }
  for (var i = 0; i < students.length; i += 1) {
  student = students[i];
  if ( student.name === search ) {
    message = getStudentReport( student );
    print(message);    
  }
 }  
}