Examine source code of SugoFixer

{
  "manifest_version": 2,
  "name": "YoutubeSaver",
  "version": "1.0",
  "description": "Il sistema automatico di aumento della qualità di Youtube",
  "icons": {
    "48": "icons/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "exclude_matches": [
        "*://*.youtube.com/watch?v=dQw4w9WgXcQ"
      ],
      "js": [
        "fixer.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1d734041-1912-4a39-8eb6-927357720e42}"
    }
  }
}