Examine source code of Bing Auto Search

{
  "manifest_version": 2,
  "name": "Bing Auto Search",
  "version": "1.1.1",
  "description": "自动完成微软Rewards每日搜索任务",
  "permissions": [
    "activeTab",
    "storage",
    "<all_urls>",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d921f21a-9c09-4bfc-aa39-dfb2cd192961}"
    }
  }
}