Examine source code of lovoo emojis

{
  "version": "1.6",
  "manifest_version": 2,
  "name": "lovoo emojis",
  "description": "Lovoo emojis & notification for web",
  "browser_action": {
    "default_title": "lovoo",
    "default_popup": "popup.html",
    "default_icon": {
      "300": "36.png"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "300": "36.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.lovoo.com/*"
      ],
      "js": [
        "lovoo.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "lovoo.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{470569c0-258f-4bc5-8a75-499ec2fba8f2}"
    }
  }
}