Examine source code of Delete any Cookies

{
  "manifest_version": 2,
  "name": "Delete any Cookies",
  "version": "1.0",
  "description": "Quickly delete cookies, localStorage, and cache for the current site.",
  "permissions": [
    "cookies",
    "browsingData",
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Delete any Cookies",
    "default_icon": "icons/icon128.png"
  },
  "icons": {
    "64": "icons/icon64.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "applications": {
    "gecko": {
      "id": "{f2e985b7-d1a0-461d-bd43-8f6e67dd582f}",
      "strict_min_version": "132.0"
    }
  }
}