Examine source code of Screen recorder

{
  "manifest_version": 2,
  "name": "Video Capture",
  "version": "1.1",
  "description": "Capture screen and download.",
  "icons": {
    "48": "icons/favorite.png"
  },
  "permissions": [],
  "browser_action": {
    "default_icon": "icons/favorite.png",
    "default_title": "Video Capture"
  },
  "background": {
    "scripts": [
      "background-script.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{53167a42-e510-460f-a7d8-cc753a92b131}"
    }
  }
}