Examine source code of Blogs Are Back - Feed Fetcher

{
  "manifest_version": 3,
  "name": "Blogs Are Back - Feed Fetcher",
  "version": "2.3.3",
  "description": "Fetch RSS/Atom feeds directly from your browser for Blogs Are Back",
  "permissions": [
    "storage",
    "unlimitedStorage",
    "contextMenus",
    "tabs",
    "notifications",
    "alarms",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "service-worker.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@blogsareback.com",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://blogsareback.com/*",
        "https://*.blogsareback.com/*"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "feed-discovery.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "floating-button.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "injected-script.js",
        "assets/*"
      ],
      "matches": [
        "https://blogsareback.com/*",
        "https://*.blogsareback.com/*"
      ]
    }
  ]
}