Examine source code of AdSkipper

{
  "manifest_version": 2,
  "name": "AdSkipper",
  "description": "Automatically skips YouTube ads while supporting creators.",
  "version": "0.4.3",
  "content_scripts": [
    {
      "matches": [
        "https://*.youtube.com/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "permissions": [
    "https://*.youtube.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1301e1a8-1615-47f9-b2e2-21d313de637f}"
    }
  }
}