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SaaS MVPsMicro Business#066

Chrome Extension

A production-ready Chrome extension — popup UI, background worker, and synced storage — built on Manifest V3 to ship on the Web Store.

Project snapshot

Starting at
₹45,000$620
Delivery
21 days
Status
Live
Tech stack
Manifest V3 + React

Manifest V3

Platform

Synced

Storage

Web Store

Ships to

21 days

Build

Overview

Chrome Extension is a complete browser-extension build: a polished popup interface, a background service worker for logic that runs while you browse, and storage that syncs across a user's devices. It is structured to pass Web Store review and ship.

It is built for founders and teams who want their idea to live where users already work — in the browser — without wrestling with Manifest V3's service-worker model, permissions, and store requirements themselves.

The problem

Browser extensions look simple but Manifest V3 changed how they work — background pages became service workers, permissions tightened, and Web Store review is strict. This delivers a correct, review-ready extension so the idea ships instead of stalling on platform quirks.

Who it's for

  • Founders taking a product into the browser where users already are.
  • SaaS teams adding a companion extension to their web app.
  • Creators of productivity, scraping, or automation tools that live in the browser.

Features

Popup UI

A clean React popup for the extension's main interface, so users get a polished experience on click.

Background service worker

A Manifest V3 background worker handles events and logic that runs while the user browses.

Synced storage

User settings and data sync across their devices through the extension storage APIs.

Permissions & content scripts

Scoped permissions and content scripts interact with pages only where needed, which keeps review smooth.

Store-ready packaging

The extension is packaged and documented to meet Chrome Web Store submission requirements.

User stories

  • As a user, I want a quick popup so that I can use the tool without leaving my tab.
  • As a user, I want my settings synced so that they follow me across devices.
  • As a founder, I want a Web Store-ready build so that I can publish without rejections.
  • As a team, I want the extension to talk to our web app so that it fits our product.

User flow

  1. 1

    Install

    The user installs the extension from the Chrome Web Store.

  2. 2

    Open popup

    Clicking the icon opens the popup interface for the main action.

  3. 3

    Work in-page

    Content scripts and the background worker act on pages where permitted.

  4. 4

    Sync

    Settings and data sync across the user's devices.

Architecture

A Manifest V3 extension with a React popup, a background service worker, and content scripts. State persists through the extension storage APIs with cross-device sync.

Permissions are scoped to only what the extension needs, and content scripts are injected narrowly, which is both good practice and important for passing Web Store review.

The extension can talk to a backend or your existing web app for authenticated features when required.

Tech stack

PlatformChrome Manifest V3
UIReact + TypeScript
BackgroundService worker
StorageExtension sync storage
DistributionChrome Web Store

Data model

EntityFields
Settingskey, value, syncedAt
StoredItemid, type, data, createdAt

Build plan

  1. Week 1 — Popup & storage

    ~7 days

    Popup UI, storage model, and sync.

  2. Week 2 — Background & content

    ~7 days

    Service worker, content scripts, and permissions.

  3. Week 3 — Packaging & submission

    ~7 days

    Store packaging, review prep, QA, and submission.

Deliverables

  • Published or submission-ready Chrome extension.
  • Popup UI, background worker, and synced storage.
  • Full source code and setup documentation.
  • Web Store listing assets and submission guidance.

Integrations

  • Chrome Web Store for distribution.
  • Optional: backend or existing web app for authenticated features.
  • Optional: Firefox / Edge builds from the same codebase.

FAQ

Is it built on the latest extension standard?

Yes. It uses Manifest V3 with a background service worker, the current Chrome requirement.

Will it pass Web Store review?

It is packaged with scoped permissions and documentation to meet submission requirements.

Does data sync across devices?

Yes. Settings and data sync through the extension storage APIs.

Can it work on Firefox or Edge too?

Yes. Cross-browser builds can be produced from the same codebase as a scope extension.

Want Chrome Extension built for you?

Share your requirements and CodersArts Build will scope it into a fixed timeline and price, starting at ₹45,000.

Start this Project