Examine source code of Skip Button Clicker

{
  "manifest_version": 2,
  "name": "Skip Button Clicker",
  "version": "1.20",
  "description": "Automatically clicks the skip button on Netflix and Prime Video",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.netflix.com/*",
        "*://*.primevideo.com/*"
      ],
      "js": [
        "background.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d44cc0dc-88a2-42f1-936c-4202d9d214fd}"
    }
  }
}