Examine source code of Social Toad

{
  "manifest_version": 2,
  "name": "Social Toad",
  "description": "This extension allows you to analyze URLs using the Social Toad API.",
  "version": "1.0",
  "browser_action": {
    "default_icon": {
      "48": "icons/icon48.png"
    },
    "default_popup": "popup.html"
  },
  "icons": {
    "36": "icons/icon36.png",
    "48": "icons/icon48.png",
    "72": "icons/icon72.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png",
    "144": "icons/icon144.png",
    "192": "icons/icon192.png",
    "512": "icons/icon512.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "*://*.socialtoad.com/api/analyze/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{69fd9dc8-7044-4970-b5e4-b126741ce5d4}"
    }
  }
}