Extendo Logic
Custom Development

Custom Browser Extension Development

We build bespoke browser extensions that integrate seamlessly with your workflow, enhance productivity, and deliver exceptional user experiences across all major browsers.

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What We Build

From simple utilities to complex enterprise solutions, we develop extensions for every use case.

Productivity Tools

Task managers, note-taking apps, time trackers, and workflow automation extensions.

Content Modifiers

Page enhancers, content blockers, form fillers, and custom UI overlays.

Developer Tools

API testers, code inspectors, debugging utilities, and development workflow tools.

Integration Extensions

Connect browsers to your SaaS tools, CRMs, and internal systems seamlessly.

Security & Privacy

Password managers, encryption tools, privacy protectors, and security scanners.

Enterprise Solutions

Custom business tools, compliance extensions, and team collaboration platforms.

Our Development Process

A proven methodology that delivers high-quality extensions on time and within budget.

01

Discovery & Planning

We analyze your requirements, define features, and create a detailed technical specification.

02

Design & Architecture

UI/UX design for extension interfaces and system architecture planning for optimal performance.

03

Development

Agile development with regular updates, using modern frameworks and best practices.

04

Testing & QA

Comprehensive testing across browsers, devices, and edge cases to ensure reliability.

05

Deployment

Chrome Web Store, Firefox Add-ons, and Safari Extensions Gallery submission and approval.

06

Support & Updates

Ongoing maintenance, feature updates, and performance optimization.

Technologies We Use

Modern, battle-tested technologies for reliable and performant extensions.

Chrome Extension Manifest V3 Firefox WebExtensions API Safari Web Extensions React / Vue / Angular TypeScript WebAssembly Background Service Workers Content Scripts Browser Storage APIs OAuth 2.0 / SSO WebSocket Integration IndexedDB

Why Choose Custom Extensions?

Off-the-shelf extensions rarely fit your exact needs. Custom development gives you complete control over functionality, security, and user experience.

  • Custom-tailored to your workflow
  • Seamless browser integration
  • Offline-first architecture
  • Enterprise-grade security
  • Cross-browser compatibility
  • Scalable and maintainable code
  • Full source code ownership
  • Comprehensive documentation

Project Timeline

Simple Extension 2-4 weeks
Medium Complexity 4-8 weeks
Complex Enterprise 8-16 weeks
Multi-Browser Support +2-3 weeks

Ready to Build Your Custom Extension?

Let's discuss your project requirements and create something amazing.

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