Examine source code of block it

{
  "manifest_version" : 2 ,
  "name" : "block it",
  "version" : "1.1",
  "description" : "blocks bad pages.... In my way",
  "content_scripts" : [
    {
      "css" : [
        "style.css" 
      ],
      "js" : [
        "content.js" 
      ],
      "matches" : [
        "*://*.pornhub.com/*" ,
        "*://*.xxxn.com/*" ,
        "*://*.xxxn.com/*" ,
        "*://*.xxxn.tv/*" ,
        "*://*.porn.com/*" ,
        "*://*.xvideos.com/*" ,
        "*://*.youporn.com/*" ,
        "*://*.fuq.com/*" ,
        "*://*.4porn.com/*" ,
        "*://*.xhamster.com/*" ,
        "*://*.happy-porn.com/*" ,
        "*://*.fansly.com/*" ,
        "*://*.onlyf**s.com/*" ,
        "*://*.hentai.com/*" ,
        "*://*.hanime.com/*" ,
        "*://*.hanime.tv/*" ,
        "*://*.porr.com/*" 
      ]
    }
  ],
  "permissions" : [
    "activeTab" 
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2d8f2266-47af-4599-8650-dcf1011f1c62}"
    }
  }
}