Examine source code of Social Reels Control

{
  "name": "Social Reels Control",
  "version": "2.9",
  "description": "Advanced controls for Instagram/Facebook Reels with keyboard shortcuts",
  "manifest_version": 2,
  "permissions": [
    "contextMenus",
    "tabs",
    "scripting",
    "activeTab",
    "*://*.instagram.com/*",
    "*://*.facebook.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*",
        "*://*.facebook.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "96": "icon96.png",
      "128": "icon128.png"
    },
    "default_title": "Reels Controls (A/S/D keys) | Toggle Reels Controls"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ca140d11-98be-4e64-839a-f3af6d84b94e}"
    }
  }
}