React Chrome Extension Tutorial
Learn how to build a simple Chrome extension using React
First, make sure you have Node.js and npm (Node Package Manager)
installed on your computer. If you don't have these already, you can
download and install them from the official website (https://nodejs.org/).
Next, create a new directory for your extension and navigate to it in
In the terminal, run the following command to create a new React app:
npx create-react-app my-extension
This will create a new React app in a directory called "my-extension".
Navigate to this directory:
Now, you need to create a file called "manifest.json" in the root of your
extension directory. This file will contain metadata about your extension,
including its name, description, and permissions. Here is an example
manifest file that you can use as a starting point:
"name": "My Extension",
"description": "A simple Chrome extension",
"default_title": "My Extension",
Next, you need to modify your React app to work as a Chrome extension. In
the "public" directory, create a new file called "index.html". This file
will be the main HTML file for your extension's popup window. Here is an
example of what this file might look like:
Now, open "src/index.js" and modify it to render your React app into the
"root" div in your extension's popup window. Here is an example of what
this file might look like:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
Next, you need to build your React app for production. In the terminal,
run the following command:
npm run build
This will create a "build" directory with the compiled version of your app.
Finally, you need to load your extension into Chrome. In Chrome, open the
"Extensions" page (chrome://extensions/). Enable "Developer mode" by
clicking the toggle in the top right corner. Then, click the "Load
unpacked" button and select the "build" directory of your extension.
Your extension should now be installed and working in Chrome! You can test
it by clicking the extension's icon in the browser toolbar.