Examine source code of YT Comments Popup

{
  "name": "YT Comments Popup",
  "version": "1.3.5",
  "icons": {
    "128": "ytcp.png"
  },
  "description": "Preview YT comments by hovering over links unless Ctrl is pressed",
  "manifest_version": 3,
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "js": [
        "ytcp.js"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ytcp@tamo.ddns.org",
      "data_collection_permissions": {
        "required": [
          "websiteContent",
          "websiteActivity"
        ]
      }
    }
  },
  "developer": {
    "name": "Tamotsu Takahashi",
    "url": "https://github.com/tamo/yt-comments-popup/"
  }
}