Examine source code of MyPriceBee

{
  "manifest_version": 2,
  "name": "MyPriceBee",
  "version": "1.0.0",
  "description": "Track product prices on Amazon, Best Buy, and Target. Get notified when prices drop!",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "https://www.mypricebee.com/*",
    "https://mypricebee.com/*",
    "https://mypricebee-api.mypricebee.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "MyPriceBee - Track Product Prices"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.mypricebee.com/*",
        "https://mypricebee.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "mypricebee@mypricebee.com",
      "strict_min_version": "79.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}