Examine source code of NoPassword

{
  "author": "WiActs Inc.",
  "manifest_version": 2,
  "name": "NoPassword",
  "description": "NoPassword Extension works with NoPassword hidden multi-factor authentication solution to provide the most secure authentication",
  "version": "2.3.6resigned1",
  "icons": {
    "16": "images/logo-blue.png",
    "48": "Icon-48.png",
    "64": "Icon-64.png"
  },
  "background": {
    "scripts": [
      "assets/jquery.js",
      "assets/aes.js",
      "js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "http://*/*",
    "https://*/*",
    "tabs",
    "cookies",
    "notifications",
    "contextMenus",
    "webNavigation",
    "webRequestBlocking",
    "storage"
  ],
  "web_accessible_resources": [
    "images/*.png",
    "popups/*.*"
  ],
  "browser_action": {
    "default_icon": "images/logo-blue.png",
    "default_title": "NoPassword"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "styles/main.css"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@nopassword"
    }
  }
}