Examine source code of Auto Save Pages

{
  "name": "Mutex Save html",
  "version": "1.0",
  "description": "Smart HTML AUTO SAVE",
  "manifest_version": 2,
  "icons": {
    "48": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "webNavigation",
    "tabs",
    "activeTab",
    "downloads"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "muteb.ali.asiri@gmail.com"
    }
  }
}