Examine source code of YourOnlineChoices Plugin

{
  "name": "YourOnlineChoices Persistence Plugin",
  "version": "0.1.2resigned1",
  "description": "Helps preserve your choices for online behavioural advertising from companies in the European OBA Self-Regulatory Programme",
  "permissions": [
    "cookies",
    "http://*/*",
    "unlimitedStorage",
    "storage"
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "page": "background.html"
  },
  "manifest_version": 2,
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icon16.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "yoc@edaa.eu"
    }
  }
}