Examine source code of Gelbooru Easy View

{
  "manifest_version": 2,
  "name": "Gelbooru Easy View",
  "version": "1.3",
  "description": "Adds view and download buttons to your Gelbooru search results for easy viewing and downloading without opening a new tab or window.",
  "content_scripts": [
    {
      "matches": [
        "*://*.gelbooru.com/*"
      ],
      "js": [
        "plugin.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{03e89dc9-a506-4394-a7df-8a802c5d9c1a}"
    }
  }
}