Examine source code of Accel VPN

{
  "applications": {
    "gecko": {
      "id": "adm.azsolusindo@gmail.com"
    }
  },
  "name": "Accel VPN",
  "description": "Accel VPN Private to Secure Access Certain Website As ZQscore.com",
  "permissions": [
    "proxy",
    "tabs",
    "unlimitedStorage",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "browserSettings",
    "privacy",
    "http://*/*",
    "https://*/*"
  ],
  "version": "1.3.5",
  "icons": {
    "48": "images/vpn48.png",
    "96": "images/vpn.png"
  },
  "background": {
    "scripts": [
      "js/jquery.min.js",
      "js/fingerprint2.js",
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "images/vpn.png",
    "default_title": "Accel VPN"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "manifest_version": 2
}