Examine source code of Browser Boost

{
  "browser_specific_settings": {
    "gecko": {
      "id": "{1cad1fa4-745f-4aee-adc5-544b2dfaea7b}"
    }
  },
  "manifest_version": 2,
  "name": "Browser Boost",
  "version": "2.1.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "boost.js"
      ],
      "css": [
        "boost.css"
      ]
    }
  ]
}