This presentation offers a comprehensive step-by-step guide to creating Chrome extensions, specifically tailored for middle school students. By emphasizing the importance of teaching HTML, CSS, and JavaScript in middle schools, we aim to inspire and empower young minds to explore the world of web development and create their own personalized browsing experiences. The presentation covers the basics of Chrome extension development, from planning the extension to publishing it on the Chrome Web Store, providing a clear roadmap for educators and students alike. Join us in fostering creativity, critical thinking, and problem-solving skills in middle school students as they embark on their journey to develop innovative Chrome extensions.

1. Building Custom
Chrome Extensions
A Step-by-Step Guide to Creating and Publishing Chrome Extensions

2. Plan your
extension:
◦ Before you start coding, decide what
functionality you want to provide with your
extension. Consider the user interface,
interactions, and required permissions.

3. Set up the
development
environment
◦ To create a Chrome extension, you need a code editor (like
Visual Studio Code, Sublime Text, or Atom) and a web
browser with the latest version of Google Chrome
installed.

4. Create the
extension's files
and folders
Chrome extensions typically have the following files:
manifest.json
popup.html (optional)
popup.js (optional)
background.js (optional)
content.js (optional)
options.html (optional)
options.js (optional)
icons (folder, optional)

5. Create the
manifest.json file
This is the metadata file for your extension. It contains
information like the extension's name, version,
description, and permissions.

6. Develop the
user
interface
(optional):
◦ If your extension requires a popup, create the
popup.html file and design the user interface using
HTML, CSS, and JavaScript.

7. Add functionality
with JavaScript
◦ Write the necessary JavaScript code to implement your extension's
functionality. You can use separate files for different parts of the
extension, such as popup.js, background.js, and content.js.

8. Create an options
page (optional)
◦ If your extension requires user-configurable settings,
create an options.html file and write the necessary HTML,
CSS, and JavaScript code to handle user preferences.

9. Test your extension
Open Chrome
Go to chrome://extensions/
Enable "Developer mode"
Click "Load unpacked"
Select the folder containing your extension
This will load your extension in Chrome. Test the
functionality and fix any issues you encounter.

10. Package your
extension
When your extension is ready for distribution, you
need to package it as a .zip file:
Package
Compress your extension's folder into a .zip file
Compress
Make sure to exclude any unnecessary files or
folders, like development tools or source files
Make

11. Publish your
extension
◦ To publish your extension on the Chrome Web
Store, follow these steps:
• Create a developer account on the Chrome Web
Store
(https://chrome.google.com/webstore/developer/das
hboard)
• Click "Add new item"
• Upload your .zip file
• Provide the required information (description, icons,
screenshots, etc.)
• Pay the one-time developer fee (if applicable)
• Submit your extension for review

12. Approval
Once your extension is approved, it will
be available for users to download and
install from the Chrome Web Store.