Examine source code of Auto Web Content Archiver

{
  "manifest_version": 2,
  "name": "Auto Web Content Archiver",
  "version": "1.3",
  "description": "Automatically archives and screenshots the web pages you visit for offline use.",
  "permissions": [
    "tabs",
    "activeTab",
    "webNavigation",
    "storage",
    "downloads"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/logo_64.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b4de9369-c2de-4a6f-b8de-b8053b79f005}"
    }
  }
}