manifest.json

{
  "manifest_version": 2,
  "name": "Min Max Close - Hub",
  "version": "3.4",
  "description": "3 in 1 button hub helps replace your Minimize, Maximize/Resize, and Close Buttons. Fellow Hobbyist will find this useful on their Firefox CSS endeavors. Repackaged Script from https://github.com/dhanushl0l",
  "icons": {
    "48": "css&ico/icon.png"
  },
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "css&ico/icon.png"
    }
  },
  "background": {
    "scripts": [
      "popup.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "minmaxclose@soulhotel.net"
    }
  }
}