Examine source code of Usharez Companion

{
  "manifest_version": 2,
  "name": "Usharez Companion",
  "version": "1.0.3",
  "description": "Click any admin row in the Usharez admin panel to open www.alfa.com.lb pre-logged-in for that admin, using the cookies stored for that admin in Usharez. Works on Firefox Desktop and Firefox for Android.",
  "browser_specific_settings": {
    "gecko": {
      "id": "companion@usharez",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "cookies",
    "tabs",
    "storage",
    "https://usharez.com/*",
    "https://*.usharez.com/*",
    "https://www.alfa.com.lb/*"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_action": {
    "default_title": "Usharez Companion",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://usharez.com/*",
        "https://*.usharez.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false,
    "browser_style": true
  }
}