Examine source code of ipsToNetwork

{
  "manifest_version": 3,
  "name": "ipsToNetwork",
  "version": "1.3",
  "description": "Calculates smallest IPv4 or IPv6 network covering two IPs.",
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "ipsToNetwork_16px.png",
    "32": "ipsToNetwork_32px.png",
    "48": "ipsToNetwork_48px.png",
    "128": "ipsToNetwork_128px.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@ipsToNetwork.mattfield.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}