Examine source code of VkClear - чистая лента VK

{
  "background": {
    "scripts": [
      "js/jquery.js",
      "js/script.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.vk.com/*"
      ],
      "css": [
        "css/content.css"
      ],
      "js": [
        "js/jquery.js",
        "js/content_script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "16": "images/16.png",
      "48": "images/48.png",
      "128": "images/128.png"
    },
    "default_popup": "popup.html"
  },
  "description": "Расширение для ВКонтакте, позволяющее удалить рекламу, репосты, игровой спам, истории друзей и прочий мусор.",
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "manifest_version": 2,
  "name": "VkClear: чистая лента VK",
  "short_name": "VkClear",
  "permissions": [
    "tabs",
    "webRequest",
    "*://*.vk.com/",
    "storage"
  ],
  "version": "1.0.8resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{f55957b8-aaa8-4aa8-bdf8-94b238822774}"
    }
  }
}