Examine source code of Web Page Archive Manager

{
  "manifest_version": 2,
  "name": "Web Page Archive Manager",
  "version": "1.0",
  "description": "Archive web pages offline with advanced organization and search features",
  "permissions": [
    "activeTab",
    "storage",
    "downloads",
    "<all_urls>",
    "contextMenus"
  ],
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_popup": "popup/popup.html",
    "default_title": "Web Archive Manager"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "sidebar_action": {
    "default_title": "Archive Manager",
    "default_panel": "sidebar/sidebar.html",
    "default_icon": "icons/icon-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7656846-c5ca-4994-97fc-87baf2eefa07}"
    }
  }
}