Mamunur Rashid
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Browser & IDE Extension Development

Hire a Browser Extension Developer

I build custom browser extensions for Chrome and Edge, plus VS Code extensions that enhance developer workflows. From concept to Chrome Web Store publishing, I handle the complete lifecycle.

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1,400+ Extension Installs
5.0 Store Rating
MV3 Manifest V3

Custom Browser & VS Code Extension Development

Browser extensions are powerful tools that enhance how people interact with the web. Whether you need an internal productivity tool for your team, a SaaS companion extension, or a standalone product for the Chrome Web Store, I bring hands-on experience shipping real extensions used by thousands of users.

I have published extensions on both the Chrome Web Store and VS Code Marketplace, including SEO Spider Tools (available on Chrome and Edge) and NPM Manager for VS Code (1,400+ installs, 5-star rating). This means I understand not just the code, but the entire lifecycle — from architecture to store submission to ongoing maintenance.

What I Build

  • Chrome and Edge extensions using Manifest V3
  • VS Code extensions with custom commands, webview panels, and language support
  • Content scripts for page modification and data extraction
  • Popup and sidebar user interfaces
  • Background service workers for persistent processing
  • Cross-browser extensions from a single codebase
  • Extension backends with user authentication and cloud sync

Technology Stack

JavaScript TypeScript Manifest V3 Chrome APIs VS Code API HTML/CSS Webpack Node.js REST API Git

Why Choose Me for Your Extension Project

Unlike general web developers who occasionally touch extensions, I have shipped real extensions to production stores. I understand the unique challenges — permission models, content security policies, cross-origin restrictions, store review processes, and the nuances of background vs content script communication. You get an experienced extension developer who has been through the full cycle multiple times.

Why Choose My Extension Development Services

Manifest V3 Expert

I build extensions using the latest Manifest V3 standard, ensuring compatibility with Chrome Web Store policies and future-proofing your extension.

Cross-Browser Support

One codebase that works across Chrome, Edge, and other Chromium-based browsers. Reach the widest possible audience with minimal additional effort.

Clean Architecture

Proper separation of background scripts, content scripts, and popup UI. Modular code that is easy to maintain, extend, and debug.

Store Publishing

Full support from development through Chrome Web Store and VS Code Marketplace submission, including icon design, screenshots, and listing optimization.

Privacy-First Design

Minimal permissions, clear privacy policies, and transparent data handling. Extensions that respect user privacy and pass store review quickly.

VS Code Extensions Too

Beyond browsers, I build VS Code extensions that enhance developer workflows with custom commands, sidebar panels, and language support.

My Development Process

From concept to Chrome Web Store — a proven workflow for shipping quality extensions.

1

Concept & Scoping

We define what your extension does, which APIs it needs, and what permissions are required. I map out the architecture and user experience flow.

2

UI/UX Design

Designing the popup, options page, and any sidebar or overlay interfaces. Clean, intuitive UI that follows platform design guidelines.

3

Core Development

Building the extension with proper background/content script separation, message passing, storage management, and API integrations.

4

Testing & QA

Thorough testing across Chrome and Edge, including permission edge cases, offline behavior, and performance under heavy usage.

5

Store Submission

Preparing store assets (icons, screenshots, descriptions), writing privacy policies, and managing the review process for approval.

6

Updates & Maintenance

Ongoing updates for browser API changes, user feedback implementation, and feature additions. Keeping your extension current and competitive.

Published Extensions

SEO Spider Tools

SEO Spider Tools

Browser extension for Chrome & Edge that analyzes on-page SEO data directly from the browser.

NPM Manager

NPM Manager

VS Code extension with 1,400+ installs for managing project dependencies visually. 5-star rated.

Browser Extension Development FAQ

Chrome and Edge both use the same Chromium engine and extension API, so a single extension codebase works on both browsers with minimal adjustments. The main differences are in store submission processes and policies. Chrome uses the Chrome Web Store while Edge uses the Microsoft Edge Add-ons store. I build extensions that are compatible with both from the start, and handle submission to both stores.

Manifest V3 is the latest extension platform from Google, replacing Manifest V2. It introduces service workers instead of persistent background pages, declarativeNetRequest for network filtering, and stricter permission controls. Chrome is phasing out Manifest V2, so all new extensions must use V3. I build exclusively with Manifest V3, ensuring your extension meets current requirements and will not need migration later.

Yes, VS Code extension development is one of my specialties. I have published extensions on the VS Code Marketplace, including NPM Manager which has over 1,400 installs and a 5-star rating. I can build custom commands, sidebar webview panels, language support, code linting, snippet providers, and integrations with external APIs or services.

A simple popup-based extension takes 1-2 weeks. Extensions with content script injection, background processing, and API integrations typically take 3-5 weeks. Complex extensions with full sidebar UIs, data synchronization, and multiple integrations can take 6-10 weeks. I provide a detailed timeline after our initial consultation.

Yes, there are several monetization strategies. These include freemium models with premium features, one-time payments via the Chrome Web Store, subscription-based access using your own payment system, or offering the extension as part of a larger SaaS product. I can implement the payment integration and licensing system that fits your business model.

After submission, Google reviews your extension for policy compliance, security, and functionality. Reviews typically take 1-3 business days but can take longer for extensions requesting sensitive permissions. I optimize submissions by requesting minimal permissions, writing clear privacy policies, and providing detailed justifications. This helps achieve faster approval and fewer rejections.

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Ready to Build Your Browser Extension?

Let's discuss your extension idea and bring it to the Chrome Web Store.

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