Examine source code of YT Short Redirect

{
  "manifest_version": 2,
  "name": "YT Short Redirect",
  "author": "pb_ozai",
  "version": "1.0",
  "description": "Redirect YT shorts to video format",
  "icons": {
    "48": "icons/disable_short.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "default_title": "Disable Short Redirect"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{94c90309-95ae-4e17-b63d-de3fb4567b31}"
    }
  }
}