Examine source code of Boycott Shitty Websites

{
  "manifest_version": 2,
  "name": "Boycott Shitty Websites",
  "version": "1.0",
  "description": "Helps you block and avoid low-quality, misleading, or harmful websites. Customize your blacklist and improve your browsing experience by filtering out unreliable sources",
  "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": "{6033f4c5-7886-45d6-9c74-c047baf5650d}"
    }
  }
}