Examine source code of 鲲圭填鸭--账户密码保存管理

{
  "manifest_version": 2,
  "name": "鲲圭填鸭",
  "version": "1.2.8",
  "description": "网址填鸭！保存账户密码！",
  "homepage_url": "https://kunquer.com/",
  "browser_action": {
    "default_icon": "img/form.png",
    "default_title": "feeduck",
    "default_popup": "popup.html"
  },
  "permissions": [
    "https://*.kunquer.com/",
    "storage",
    "cookies",
    "activeTab",
    "tabs"
  ],
  "icons": {
    "128": "img/form.png"
  },
  "background": {
    "scripts": [
      "js/background2.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/content.js"
      ],
      "all_frames": true,
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "save.html",
    "recommend.html",
    "password.html"
  ]
}