Examine source code of Foxly - URL Shortener

{
  "manifest_version": 2,
  "short_name": "React App",
  "name": "Foxly - URL Shortener",
  "version": "0.0.3",
  "browser_action": {
    "default_icon": {
      "48": "foxlyme.png"
    }
  },
  "icons": {
    "16": "foxlyme.png",
    "48": "foxlyme.png",
    "128": "foxlyme.png",
    "500": "foxlyme.png"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "webRequest",
    "notifications",
    "webNavigation",
    "webRequestBlocking",
    "https://apiv2.foxlyme.com/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{98dfe488-2f94-4754-9b5e-c411e99dcc79}"
    }
  }
}