Examine source code of Buildz.gg - PriceWatcher

{
  "manifest_version": 3,
  "name": "Buildz.gg - PriceWatcher",
  "version": "2.2.0",
  "default_locale": "sk",
  "description": "__MSG_extDescription__",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*.alza.sk/*",
    "*://*.alza.cz/*",
    "*://*.mironet.cz/*",
    "*://*.mironetcz.sk/*",
    "*://*.k24.cz/*",
    "*://*.k24.sk/*",
    "*://*.tsbohemia.cz/*",
    "*://*.tsbohemia.sk/*",
    "*://*.datart.cz/*",
    "*://*.nay.sk/*",
    "*://*.datacomp.sk/*",
    "*://*.smarty.cz/*",
    "*://*.smarty.sk/*",
    "*://*.suntech.cz/*",
    "https://backend.buildz.gg/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.alza.sk/*",
        "*://*.alza.cz/*",
        "*://*.mironet.cz/*",
        "*://*.mironetcz.sk/*",
        "*://*.k24.cz/*",
        "*://*.k24.sk/*",
        "*://*.tsbohemia.cz/*",
        "*://*.tsbohemia.sk/*",
        "*://*.datart.cz/*",
        "*://*.nay.sk/*",
        "*://*.datacomp.sk/*",
        "*://*.smarty.cz/*",
        "*://*.smarty.sk/*",
        "*://*.suntech.cz/*"
      ],
      "js": [
        "vendor/chart.umd.min.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "fonts/*.woff2"
      ],
      "matches": [
        "*://*.alza.sk/*",
        "*://*.alza.cz/*",
        "*://*.mironet.cz/*",
        "*://*.mironetcz.sk/*",
        "*://*.k24.cz/*",
        "*://*.k24.sk/*",
        "*://*.tsbohemia.cz/*",
        "*://*.tsbohemia.sk/*",
        "*://*.datart.cz/*",
        "*://*.nay.sk/*",
        "*://*.datacomp.sk/*",
        "*://*.smarty.cz/*",
        "*://*.smarty.sk/*",
        "*://*.suntech.cz/*"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Buildz.gg - PriceWatcher"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "price-comparison@buildz.gg",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}