Examine source code of WebExtension CediActe

{
  "manifest_version": 2,
  "name": "WebExtension CediActe",
  "version": "3.0.1",
  "description": "Utiliser les composants CediActe sous Firefox.",
  "icons": {
    "48": "icons/cediacte-48.png"
  },
  "applications": {
    "gecko": {
      "id": "cediacte.webextension@cerig.com",
      "strict_min_version": "57.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "main.js",
        "dmp.js",
        "msSante.js",
        "vitale.js"
      ],
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "nativeMessaging"
  ]
}