Block URL by Keyword

An add-on designed (mostly) for my own personal use. This extension redirects searches away from URLs containing specific key-words.
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manifest.json
{
  "manifest_version": 2,
  "name": "Block URL by Keyword",
  "version": "1.1",
  "description": "Does exactly what is says on the tin. It inspects the URL for specific keywords, and redirects the browser if it finds something naughty :)",
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "keywordBlocker.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "pop.html",
    "default_icon": "icon/stop.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f92c1809-55d3-429a-9319-3577cf76d476}"
    }
  }
}