Examine source code of IP Extractor Tools

{
  "manifest_version": 2,
  "name": "IP Extractor for Waterfox",
  "version": "1.1",
  "description": "Extracts IP addresses from a webpage and optionally analyzes Gmail DKIM/SPF authentication results.",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "newsletters@zynkify.com",
      "strict_min_version": "102.0"
    }
  }
}