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Get Started with Solid

This quick guide will get you up and running with a Chrome Extension popup page. You'll see how to integrate CRXJS with Vite, then explore Vite HMR in an extension Solid HTML page. The first two sections take about 90 seconds!

Create a Vite project

Use your favorite package manager to scaffold a new project and follow the prompts to create a Solid project.

npx degit solidjs/templates/js vite-solid-crxjs


npx degit solidjs/templates/ts vite-solid-crxjs

Check package.json to ensure that "type": "module" is set. If this package key is missing, Vite might not be able to build vite.config.ts.

Install CRXJS Vite plugin

Now install the CRXJS Vite plugin using your favorite package manager.

npm i @crxjs/vite-plugin@beta -D

The official SolidJS templates use Vite 3, but CRXJS support for Vite 3 is currently in beta.

Update the Vite config

Update vite.config.js to match the code below.

import { defineConfig } from 'vite'
import solidPlugin from 'vite-plugin-solid'
import { crx } from '@crxjs/vite-plugin'
import manifest from './manifest.json'

export default defineConfig({
plugins: [
crx({ manifest }),

Create a file named manifest.json next to vite.config.js.

"manifest_version": 3,
"name": "CRXJS Solid Vite Example",
"version": "1.0.0",
"action": { "default_popup": "index.html" }

First development build

Time to run the dev command. 🤞

npm run dev

That's it! CRXJS will do the rest.

Your project directory should look like this:

RPCE File Structure

Next, we'll load the extension in the browser and give the development build a test run.