Examine source code of freebs

{
  "manifest_version": 2,
  "name": "freebs",
  "version": "1.2resigned1",
  "description": "Reklam engelleyici",
  "icons": {
    "48": "icons/avx_icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.freebookspot.es/*"
      ],
      "js": [
        "Avaxify.js"
      ]
    },
    {
      "matches": [
        "https://*.filejoker.net/*"
      ],
      "js": [
        "filejokerskip.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{31b3abe5-a71d-4ef1-a68e-5c86122a7fa8}"
    }
  }
}