Examine source code of SbVideoUtils

{
  "manifest_version": 2,
  "name": "SbVideoUtils",
  "version": "1",
  "description": "Adds video autoplay, auto fullscreen, and playlist shuffle features to and Sb Urls.",
  "icons": {
    "48": "icons/SbVideoUtils.ico"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "48": "icons/SbVideoUtils.ico"
    },
    "default_title": "Sb AP and AFs",
    "default_popup": "popup/popupSettings.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.spankbang.com/*"
      ],
      "js": [
        "SbVideoUtils.js"
      ]
    }
  ],
  "options_ui": {
    "page": "/Settings/Settings.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{157b8d1a-fa17-41d8-aa07-a593ccc88eed}"
    }
  }
}