Examine source code of YouTube Sidebar Cleaner

{
  "manifest_version": 2,
  "name": "YouTube Sidebar Cleaner",
  "version": "1.0",
  "description": "Remove the YouTube recommended video sidebar for a distraction-free viewing experience.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Sidebar Cleaner"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{375ddd20-c18c-4f75-bada-88e767646a73}"
    }
  }
}