0PricingLogin▼
Browser Extensions Development (Chrome & Edge) · Lesson

Creating Interactive Popup UI

Develop dynamic and responsive popup interfaces using HTML, CSS, and JavaScript to provide quick user interactions.

What are Extension Popups?

Browser extensions often need a small user interface to interact with. This is where popup pages come in!

  • A popup is a small window that appears when you click your extension's icon in the browser toolbar.
  • It's perfect for quick actions, displaying information, or simple settings.
  • Popups are temporary: they close automatically when you click outside them or switch tabs.

Declaring Your Popup UI

To tell your browser extension which HTML file to use as its popup, you specify it in your manifest.json file.

You use the "action" key, and then "default_popup" points to your HTML file.

{
  "manifest_version": 3,
  "name": "My Popup Extension",
  "version": "1.0",
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  }
}

All lessons in this course

  1. Creating Interactive Popup UI
  2. Building an Options Page
  3. Communication Between UI Components
  4. Theming with CSS & Dark Mode Support
← Back to Browser Extensions Development (Chrome & Edge)