Examine source code of Incwo Focus

{
  "manifest_version": 2,
  "name": "Incwo Focus",
  "version": "1.1resigned1",
  "description": "Incwo Extension, écrit par Michael M.",
  "icons": {
    "48": "icon-48.ico"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.incwo.com/*"
      ],
      "js": [
        "jquery-3.3.1.min.js",
        "script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f381bac4-af50-4d4e-b018-a97a09810769}"
    }
  }
}