Examine source code of Boycott Bad Websites

{
  "manifest_version": 2,
  "name": "Boycott Bad Websites",
  "version": "1.0",
  "description": "Automatically blocks access to specified low-quality or harmful websites, helping users maintain a healthier and more productive browsing experience",
  "icons": {
    "48": "border-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "permissions": [
    "https://turn-around.glitch.me/list",
    "webRequest"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b8a96df6-3e6a-4963-9e58-1b881351ef1b}"
    }
  }
}