Examine source code of Source Identifier Sanitizer

{
  "manifest_version" : 2 ,
  "name" : "Source Identifier Sanitizer",
  "version" : "0.3",
  "description" : "Removes the Source Identifier parameter from YouTube links created with the Share button.",
  "icons" : {
    "16" : "icon16.png",
    "48" : "icon48.png",
    "128" : "icon128.png"
  },
  "permissions" : [
    "https://www.youtube.com/*" ,
    "clipboardWrite" 
  ],
  "browser_action" : {
    "default_popup" : "manual_sanitizer.html",
    "default_icon" : {
      "16" : "icon16.png",
      "48" : "icon48.png",
      "128" : "icon128.png"
    }
  },
  "content_scripts" : [
    {
      "matches" : [
        "https://www.youtube.com/*" 
      ],
      "js" : [
        "sis_youtube.js" 
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9a43c815-00db-4766-9ed0-a0ece4f37639}"
    }
  }
}