Examine source code of Plex review remover

{
  "manifest_version": 2,
  "name": "Plex review remover",
  "version": "1.5",
  "description": "Removes the review section from the Plex movie detail page",
  "icons": {
    "64": "icons/plex-64.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "plex-review-remover.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c821de55-20a5-48fb-a714-32fa5b3fdf32}"
    }
  }
}