Examine source code of Grab All Files – Bulk PDF & File Downloader

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "4.5.2",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "permissions": [
    "tabs",
    "scripting",
    "downloads",
    "storage",
    "alarms",
    "notifications",
    "contextMenus"
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "content_security_policy": {
    "extension_pages": "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: http: https:; font-src 'self'; connect-src http: https:; object-src 'none'; base-uri 'self';"
  },
  "action": {
    "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"
  },
  "background": {
    "scripts": [
      "lib/sentry-client.js",
      "lib/file-utils.js",
      "lib/license-verifier.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "license.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "lib/file-utils.js",
        "content.js"
      ],
      "all_frames": true,
      "match_about_blank": false,
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "page-interceptor.js"
      ],
      "all_frames": true,
      "match_about_blank": false,
      "run_at": "document_start",
      "world": "MAIN"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "grab-all-files@grab-all-files.app",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    }
  }
}