可拖拽的“返回页首”工具

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "可拖拽的“返回页首”工具",
  "version": "1.0",
  "description": "该扩展的特色是可拖拽，自定义按钮的放置位置",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "images/icon19.png",
      "38": "images/icon38.png"
    },
    "default_title": "可拖拽的“返回页首”工具"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "css": [
        "css/top.css"
      ],
      "js": [
        "js/drag.js",
        "js/top.js"
      ]
    }
  ]
}