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Building Custom
Chrome Extensions
A Step-by-Step Guide to Creating and Publishing Chrome Extensions
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.
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.
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)
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.
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.
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.
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.
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.
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
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
Approval
Once your extension is approved, it will
be available for users to download and
install from the Chrome Web Store.

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Chrome Extension Step by step Guide .pptx

  • 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.