Examine source code of Ultimate Naam Jap Counter

{
  "manifest_version": 2,
  "name": "Ultimate Naam Jap Counter",
  "version": "1.0.0",
  "description": "Naam Jap / Mala Counter - Mantra count karo with themes, leaderboard, achievements. Hindi & multi-religion support.",
  "author": "Naam Jap App",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png"
    },
    "default_title": "Naam Jap Counter",
    "default_popup": "counter.html"
  },
  "permissions": [
    "storage",
    "notifications"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "naam-jap-counter@extension",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}