Examine source code of LibreWolf Updater

{
  "manifest_version": 2,
  "name": "LibreWolf Updater",
  "version": "0.1.6",
  "description": "Check for and Download LibreWolf Updates",
  "developer": {
    "name": "defkev"
  },
  "applications": {
    "gecko": {
      "id": "librewolf-updater@defkev",
      "strict_min_version": "54.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "256": "logo.png"
    }
  },
  "icons": {
    "256": "logo.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "optional_permissions": [
    "downloads"
  ],
  "permissions": [
    "alarms",
    "notifications",
    "storage"
  ]
}