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Browser Extension Development Company

Chrome Extension Development
At Upstaff, we don’t just build browser extensions—we help companies turn ideas into scalable, secure, and high-performing products. Whether you need a simple Chrome extension for automation or a complex cross-browser tool integrated with cloud services and AI, our team ensures a smooth development process tailored to your business goals.
Chrome Extension Development

Please meet Upstaff Browser Extension  development team

JavaScript 7yr.
WordPress 7yr.
Vue.js 5yr.
Chrome Extensions
Ajax
Bootstrap
CSS
HTML
HTML5
HTML/CSS Preprocessors
jQuery
LESS
SASS
SCSS
ES6
Gulp.js
Pinia
Vue Router
Vuex
Webpack
React
Agile
DRY
Kanban
MVC
Scrum
SOLID
TDD
API
RESTful API
Cypress
Unit Testing
Docker
Git
UIKit
...

- 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

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Seniority Middle (3-5 years)
Location Vinnitsa, Ukraine
JavaScript 8yr.
React 8yr.
TypeScript 5yr.
Node.js 5yr.
Next.js 3yr.
Redux 4yr.
PHP 1yr.
React Native 1yr.
Angular
AngularJS
Backbone.js
Express
jQuery
NestJS
Angular CLI
Koa.js
ngFor
ngIf
NgRx
ngrx-forms
ngSwitch
React Bootstrap
reactive-forms
Redux-Saga
RxJs
Webpack
Ant Design
Material UI
Cordova
Ionic
AWS ElasticSearch
FireStore
MongoDB
MySQL
NoSQL
PostgreSQL
Redis
Sequelize
SQL
AWS
AWS EC2
AWS Lambda
AWS S3
Blockchain
Apache HTTP Server
Nginx
API
GraphQL
RESTful API
Conflict Management
Emotional Intelligence (EI)
Mentor Aptitude
Team Management
Team Management Skills
DeFi
Fortmatic
MetaMask
NFT
Smart Contract
Subsquid
Wallet Link
Web3
Docker
Kubernetes
MVC
REST
WebRTC
WebSockets
WordPress
Angular Material UI
Restfull API
...

- 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.

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Seniority Architect/Team-lead
Location Ukraine
JavaScript 4yr.
Vue.js 2yr.
React 1yr.
TypeScript
CSS
HTML
SCSS
Styled components
Tailwind CSS
Express
Node.js
Vanilla JS
Vue Router
Vuetify
Vuex
Webpack
Cloud Firestore
Firebase
Authentication
Figma
Git
Google API
RESTful API
Nova Poshta API
...

- 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.

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Seniority Junior (1-2 years)
Location Dnipro, Ukraine
Node.js 10yr.
JavaScript 15yr.
MongoDB 8yr.
Linux 8yr.
RDBMS 5yr.
PHP 4yr.
Docker 3yr.
Express 2yr.
Ext JS 2yr.
React 2yr.
AWS ElasticSearch 2yr.
Redis 2yr.
AWS 2yr.
NestJS
...

• 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

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Seniority Expert (10+ years)
Location Belarus

Project-based Model

Get a custom platform design along with any other services you might need (expert consultations, product design, web engineering, digital platforms, mobile application development, Operations and Clouds, Data and Analytics, Desktop, Embedded systems, Blockchain, No-code/Low-code, Website optimization, SEO and much more) at a fixed price.

Dedicated Development Team

Get a dedicated team of software developers working on your project according to our flexible time and materials payment scheme.

Consulting

We help our clients to identify the potential of a software development for their organization including market research, project’s feasibility assessment, analysis of blockchain platforms, tools, right features prioritization.

Steps of Creation a Browser Extension

How to write Browser Extensions? Let’s consider the important steps in this Chrome Extension guide:

01

Define Extension Purpose and Features

First step of Chrome Extension development guide is to clearly outline the purpose and functionality of your extension. Understand what problem it solves or what value it adds to users.
02

Set Up Your Development Environment

Ensure you have a code editor (e.g., Visual Studio Code) and a working knowledge of HTML, CSS, and JavaScript.
03

Create Manifest File

To make a Chrome extension, we start with a manifest file (manifest.json). This file outlines essential details about your extension, such as its name, version, permissions, and scripts.
04

Create HTML, CSS, and JavaScript Files

Develop the necessary files for your extension. For example, if your extension has a popup, create popup.html, popup.css, and popup.js.
05

Test Extension Locally

Load extension locally by navigating to chrome://extensions/, enabling “Developer mode,” and clicking “Load unpacked.” Select the directory containing your extension files.
06

Add Functionality

Implement the core functionality of your extension using JavaScript. Handle events, manipulate the DOM, and interact with Chrome APIs as needed.
07

UI/UX Design

Ensuring extension has a user-friendly interface and adheres to Chrome’s design guidelines. Consider using icons, colors, and layouts that align with the overall Chrome experience.
08

Testing and Debugging

Thoroughly test of extensions in various scenarios to identify and fix bugs. Utilize Chrome DevTools for debugging.
09

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.
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