Examine source code of Show Cookie

{
  "browser_action": {
    "browser_style": true,
    "default_title": "Show Cookie",
    "default_popup": "cookies.html",
    "default_icon": {
      "96": "icons/icons8-cookie-96.png"
    }
  },
  "description": "A lightweight extension which allows you to see the cookies in the current tab.",
  "icons": {
    "96": "icons/icons8-cookie-96.png"
  },
  "homepage_url": "https://zoofy.cc",
  "manifest_version": 2,
  "name": "Show Cookie",
  "version": "1.0",
  "permissions": [
    "cookies",
    "<all_urls>",
    "tabs"
  ]
}