Youtube Thumbnail Downloader

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_icon": {
      "16": "mains.png"
    },
    "default_popup": "popup.html",
    "name": "Youtube Thumbnail Downloader"
  },
  "content_scripts": [
    {
      "js": [
        "jquery.js",
        "download.js"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "View and Download Youtube thumbnail in different quality",
  "icons": {
    "16": "mains.png",
    "48": "mains.png",
    "128": "mains.png"
  },
  "manifest_version": 3,
  "name": "Youtube Thumbnail Downloader",
  "permissions": [
    "tabs",
    "scripting"
  ],
  "host_permissions": [
    "https://*.youtube.com/"
  ],
  "version": "1",
  "web_accessible_resources": [
    {
      "resources": [
        "*.png",
        "*.PNG"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ]
}