Examine source code of scram, gooble

{
  "manifest_version": 2,
  "name": "scram, gooble",
  "version": "0.0.6",
  "description": "Prevent the pop up that tries to get you to sign in with a google account.",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scram.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "scram@gooble.com"
    },
    "gecko_android": {
      "id": "scram@gooble.com"
    }
  }
}