extract urls of every tabs from the file `sessionstore.js` in a Firefox profile.

extractsession.js

#!/usr/bin/env nodejs
//jshint node: true
require('fs').readFile('sessionstore.js', {encoding: 'utf8'}, function (err, data) {
  "use strict";
  var session;
  if (err) {
    throw err;
  }
  session = JSON.parse(data);
  session.windows.forEach(function (window) {
    window.tabs.forEach(function (tab) {
      console.log(tab.entries.pop().url);
    });
  });
});

J'ai forké pour générer du HTML : https://gist.github.com/nhoizey/7527818

Well, I have Firefox, I have this scpript file, ... and what next?
I have tried it in the Scratchpad and the result is:
/*
Exception: SyntaxError: illegal character
@ Scratchpad/1:1
*/
What to do?