Examine source code of Classic Reddit Layout

{
  "manifest_version": 3,
  "name": "Classic Reddit Layout",
  "version": "1.1",
  "description": "A basic Firefox extension which automatically redirects to the classic Reddit layout.",
  "permissions": [
    "<all_urls>"
  ],
  "icons": {
    "48": "/icons/icon-48.png",
    "96": "/icons/icon-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.reddit.com/*"
      ],
      "js": [
        "content_scripts.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{730f8a6d-9f2a-403c-afc3-6722ec7d500c}"
    }
  }
}