Examine source code of Market Board ID

{
  "manifest_version": 2,
  "name": "Market Board ID",
  "description": "Monitor gold, forex, fuel, electricity, BPJS, and crypto prices in one extension.",
  "version": "1.0.1",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "homepage_url": "https://apps.awandigitals.com/marketboard-id",
  "permissions": [
    "storage",
    "http://localhost:3000/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "marketboard@awandigitals.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Market Board ID",
    "default_popup": "popup.html"
  }
}