Examine source code of RaidOn

{
  "manifest_version": 2,
  "name": "RaidOn",
  "description": "Outwar Raiding Extension",
  "version": "3.0.23resigned1",
  "icons": {
    "16": "assets/16.png",
    "48": "assets/48.png",
    "128": "assets/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.outwar.com/*"
      ],
      "all_frames": false,
      "js": [
        "js/lib/jquery-3.2.1.min.js",
        "js/listener.js"
      ]
    },
    {
      "matches": [
        "*://*.outwar.com/*"
      ],
      "all_frames": true,
      "js": [
        "js/frame.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "js/lib/jquery-3.2.1.min.js",
        "js/clickCaptcha.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "assets/16.png",
    "default_popup": "views/popup.html"
  },
  "permissions": [
    "cookies",
    "tabs",
    "activeTab",
    "storage",
    "webRequest",
    "*://*.outwar.com/*",
    "notifications"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{88ce4be1-0157-4021-89c5-81d7d7ff4919}"
    }
  }
}