Examine source code of Meet Reminder Extension

{
  "name": "Meet Reminder Extension",
  "background": {
    "scripts": [
      "popup.js"
    ],
    "persistent": true
  },
  "description": "This extension manages all your class codes and times, sending timely notifications so you never miss a session. When it's time for class, your browser will notify you and open the class link automatically, ensuring you’re always ready",
  "version": "0.1",
  "manifest_version": 2,
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "photo.png"
    }
  },
  "icons": {
    "128": "photo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e962ef81-4895-4361-a8df-e5161bd7eed8}"
    }
  }
}