Examine source code of PhishGuard

{
  "manifest_version": 2,
  "name": "PhishGuard",
  "version": "0.2resigned1",
  "browser_action": {},
  "icons": {
    "16": "fishing-icon-16.png",
    "128": "fishing-icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/mail/u/*/",
        "https://outlook.live.com/owa/*"
      ],
      "js": [
        "jquery.min.js",
        "jquery.qtip.js",
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4709b749-81af-4474-bfbf-ad801605d311}"
    }
  }
}