Examine source code of BDJobs Helper

{
  "manifest_version": 3,
  "name": "BDJobs Helper",
  "version": "1.0.0",
  "description": "Filter job listings by keywords and copy job details on BDJobs.com",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/48.png"
    },
    "default_title": "BDJobs Helper"
  },
  "background": {
    "scripts": [
      "background/service_worker.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://bdjobs.com/h/*",
        "*://*.bdjobs.com/h/*"
      ],
      "js": [
        "content_scripts/content.js"
      ],
      "css": [
        "content_scripts/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage",
    "clipboardWrite"
  ],
  "host_permissions": [
    "*://bdjobs.com/*",
    "*://*.bdjobs.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "bdjobs-helper@extension.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}