Examine source code of Lite notepad

{
  "manifest_version": 2,
  "name": "Notepad",
  "version": "1.0",
  "description": "Une extension avec un bloc-notes",
  "icons": {
    "48": "logo.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "logo.png"
    },
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5e1db162-eecd-417f-9fd9-3efdaf30c7d4}"
    }
  }
}