Examine source code of MovieZone

{
  "manifest_version": 2,
  "version": "1.0.337resigned1",
  "name": "MovieZone",
  "description": "With MovieZone you can keep up to date with movies news from your New Tab page!",
  "icons": {
    "128": "icons/MovieZone-128.png"
  },
  "background": {
    "scripts": [
      "js/brand.js",
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/MovieZone-128.png",
    "default_title": "New Tab"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.moviezone.customnewtab.com/*"
      ],
      "js": [
        "js/contentScript.js"
      ],
      "run_at": "document_start"
    }
  ],
  "chrome_url_overrides": {
    "newtab": "html/newtab.html"
  },
  "web_accessible_resources": [
    "icons/checker.gif"
  ],
  "permissions": [
    "http://*/*",
    "https://*/*",
    "cookies"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e6ed0c8-598c-4a5e-b53c-30d95f3a703a}"
    }
  }
}