Examine source code of Add‑Param

{
  "manifest_version": 2,
  "name": "Add‑Param",
  "version": "1.1",
  "description": "Opens current URL with query params in batches of 20.",
  "permissions": [
    "tabs",
    "activeTab"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_title": "Open Params",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d7855cb4-3004-447b-8fd2-4953de47f467}"
    }
  }
}