Browser Extension Development Company
More Than Just a Code
Whether you’re a startup launching an MVP or a product company enhancing user workflows, Upstaff provides the expertise to make your browser extension a success:
🚀 Proven Track Record: We’ve built browser extensions used by thousands, from job analysis tools to enterprise-grade productivity enhancers.
📈 Focus on Business Impact: We don’t just code—we ensure your extension meets business KPIs, drives engagement, and provides real user value.
💡 Rapid Prototyping & MVP Development: Launch fast, test the market, and iterate efficiently with our agile development approach.
⚡ Post-Launch Support & Growth Strategy: Need updates, new features, or ongoing maintenance? We offer continuous support and iteration strategies.
End-to-End Development
From concept validation to publishing on the Chrome Web Store, Edge Add-ons, or Firefox Marketplace, we handle the full development cycle.
Performance & Security
We optimize extensions for speed, memory efficiency, and security best practices to meet browser policies and user expectations.
Cross-Browser Compatibility
Our extensions work seamlessly across Chrome, Firefox, Edge, Brave, and Safari, ensuring the widest possible user reach.
Scalability & Maintainability
We build extensions with future growth in mind—whether that means adding new features, integrating with third-party APIs, or handling high user loads.
Automation & AI Integration
Need automation, scraping, or AI-powered insights? We integrate cutting-edge technologies like OpenAI, GPT-based analysis, Gemini Mini, and machine learning models.
Please meet Upstaff Browser Extension development team
Oleg V. , Node.js Software engineer
• 15+ years JavaScript programming • Over 10 years in Node.JS programming • Familiar with React.js • Experience building highly scalable distributed web applications and browser extensions • Extensive experience with REST services • Strong communication and cooperation skills • Solid experience as a Backend developer • Fluent in English, written and spoken • long Term experience in remote work with USA and Europien companies • Self-directed person, with proven ability to manage goals and deadlines effectively
Node.js 10 yr.
Oleksii , Senior JavaScript Full-Stack Engineer
- 10+ years of experience in web development, M.Sc in Software Engineering - Front-End: Angular, React, Vue.js (JavaScript & TypeScript) - Back-End: Node.js, Next.js, TypeScript , PHP - Mobile: React Native - AWS Cloud infrastructure - Control systems (e.g., Git) and familiarity with DevOps practices for continuous integration and deployment (CI/CD). - Unit testing, integration testing, and end-to-end testing. - Experience leading and mentoring a team of developers, including assigning tasks, providing guidance, and ensuring the team's success. Ability to motivate and inspire team members, resolve conflicts, and provide constructive feedback. - Experience conducting assessments and interviews remotely.
JavaScript 8 yr.
React 8 yr.
TypeScript 5 yr.
Node.js 5 yr.
Next.js 3 yr.
Kostyantyn , Javascript and Wordpress Engineer
- 7 years of commercial experience with JavaScript, ECMAScript 6. - 5 years with Vue.js framework (including Vue 3 core principles, Style Guide, Composition API, official documentation of the framework) - Deep understanding of HTML5 and CSS3. - Interacting with API endpoints and other web services. - Converting UI/UX mockups into functional web applications with pixel perfection - Experience with responsive layout, web sites, mini applications in JS and SPA in Vue.js. - Familiar with SOLID, DRY and other clean code design principles. - Experience with UI components like UI Kit & Bootstrap - Unit tests (Cypress) - Projects with Wordpress - Intermediary English
JavaScript 7 yr.
Vue.js 5 yr.
WordPress 7 yr.
Yehor R. , Frontend Software Engineer
- 3 years of commercial experience, early projects since 2017. (Vue.Js, JavaScript, Chrome extensions) - Has good knowledge of JavaScript, working with arrays, working with elements, sorting and data algorithms. Good understanding of HTML and CSS. - Familiar with methodologies, principles, paradigms, and patterns in software development. - Vuex for state management and Styled Components for styling. - Rest APIs (Google, NovaPoshta) and Git for version control. - Tailwind, Figma, and Webpack for UI - Experienced in using Google Firebase, Cloud Firestore and Authentication.
JavaScript
Vue.js
Project-based Model
Dedicated Development Team
Consulting
Steps of Creation a Browser Extension
How to write Browser Extensions? Let’s consider the important steps in this Chrome Extension guide:
Define Extension Purpose and Features
Set Up Your Development Environment
Create Manifest File
Create HTML, CSS, and JavaScript Files
Test Extension Locally
Add Functionality
UI/UX Design
Testing and Debugging
Publishing and Support
- Placement on browser stores (Google Store, Firefox, Safari etc)
- Extension description content and page
- Product placement on other platforms
- On-going support, maintenance and new version releases.
Job Description – The story of creating your own Chrome extension
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