Examine source code of Filmorias2

{
  "manifest_version": 2,
  "name": "Filmorias2",
  "version": "1.2resigned1",
  "description": "Redirect to de site!",
  "content_scripts": [
    {
      "matches": [
        "https://www.filmorias.com/*"
      ],
      "js": [
        "filmorias.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3e1173ec-957b-459e-9874-962ed40d4cd1}"
    }
  }
}