Browser Development Specialists
The Only Software Company Built Exclusively for Custom Browser Development
DevGenius is a leading browser development agency specializing in custom browser engineering, browser extensions, and cross-platform desktop applications. We work at the engine level — Chromium, Firefox, Brave, Opera, Electron, and Tauri — across Windows, macOS, and Linux.
Why DevGenius Is the Top Choice for Browser Development
We picked a lane and went deep. Browser software is all we do — and we're the best at it.
Source Code Engineering
We work inside Chromium, Gecko, and WebKit source code. Engine-level modifications, not surface-level wrappers.
Cross-Platform by Default
Everything we build ships on Windows, macOS, and Linux. Browsers, extensions, desktop apps — all platforms, every time.
Full Browser Lifecycle
From feasibility analysis to custom builds to upstream version porting and long-term maintenance. We handle the full lifecycle.
Extension Experts
Manifest V3, WebExtensions, cross-browser — Chrome, Firefox, Brave, Edge, Opera. Simple utilities to complex enterprise tools.
AI Built In, Not Bolted On
We integrate AI and ML directly into the software we build. Smart features inside browsers, extensions, and desktop apps.
Production-Ready Delivery
Tested code, clean documentation, patch files, and full knowledge transfer. Every project ships deployment-ready.
Industry-Leading Browser & Desktop Development Expertise
Browser development, extensions, desktop apps, and the technical consulting that ties it all together.
Custom Browser Development
We build and modify browsers at the engine level. Custom Chromium forks, Gecko-based Firefox builds, Brave and Opera modifications. We handle everything from branded New Tab Pages and custom toolbars to search engine integration, privacy hardening, and full feature porting between browser versions. When your fork needs to stay current with upstream releases, we handle that too.
Key capabilities
- Custom Chromium & Firefox browser builds
- CEF integration & WebView2 development
- Engine-level modification & feature porting
- Upstream version migration & maintenance
- NTP, toolbar, and search engine customization
Chromium
Firefox
C++
RustBrowser Engineering, Not General Web Development
DevGenius builds custom browsers, browser extensions, and desktop applications for teams that need deep engineering expertise and reliable delivery.
DevGenius builds custom browsers, browser extensions, and desktop applications — and that's our core focus. We work from source across Chromium-family and Gecko ecosystems, then ship production-ready implementations.
If your team needs browser engine customization, version porting, CEF or embedded browser integration, or Electron/Tauri desktop delivery across Windows, macOS, and Linux, we're already in that stack every day.
We operate as an engineering partner: clear architecture, measurable milestones, tested releases, and practical knowledge transfer so your team can maintain and scale confidently after launch.
Source-Level Browser Engineering
We work inside browser engine source code — Chromium, Gecko, and WebKit. Custom builds, feature porting, and engine-level modifications for production teams.
Cross-Platform Delivery
Browser builds, extensions, and desktop apps that ship on Windows, macOS, and Linux from day one — including native integration where needed.
Full Lifecycle Partnership
From architecture and implementation to QA, version porting, and maintenance. You get tested code, documentation, and smooth handoff.
Best-in-Class Browser Development Services
Everything we offer. Custom browser builds, extensions, desktop apps, embedded solutions, and expert technical consulting.
Browser Development
Chromium Browser Development
Custom Chromium builds, forks, CEF integration, WebView2, and engine-level modifications. Full feature porting between Chromium versions.
Firefox Browser Modification
Firefox customization, Gecko engine work, privacy-enhanced builds, and upstream maintenance.
Brave Browser Development
Brave customization, Web3 integration, BAT rewards, and privacy features.
Opera Browser Development
Opera customization and Chromium-based browser modifications.
Browser Fingerprint Spoofing
Anti-fingerprinting solutions and browser privacy protection for custom builds.
Extension Development
Chrome Extension Development
Manifest V3, content scripts, background workers, Chrome Web Store publishing.
Firefox Extension Development
WebExtensions API, Firefox-specific features, Mozilla Add-ons publishing.
Brave Extension Development
Brave-specific extensions with privacy and BAT integration.
Edge Extension Development
Edge extensions with Chromium APIs and Microsoft-specific features.
Safari Extension Development
Safari Web Extensions: Xcode packaging, macOS & iOS, App Store Connect, WebKit-native features.
Extension Bug Finding & Security
Security auditing, vulnerability assessment, and extension bug fixing.
Desktop Application Development
Electron Desktop Development
Cross-platform desktop apps for Windows, macOS, and Linux using Electron.
Tauri Desktop Development
Lightweight, secure desktop apps built with Tauri and Rust.
Embedded Browser Solutions
CEF & WebView2 Embedded Browsers
Embedded browser components for desktop apps, kiosks, POS systems, and digital signage. Custom Chromium builds optimized for specific hardware and use cases.
Technical Strategy & Consulting
Browser Project Consulting
Feasibility analysis, architecture planning, and technical strategy for browser-based products. Build vs. fork vs. modify decisions, technology stack evaluation, and project scoping.
Upstream Integration & Version Porting
Browser Version Porting & Upstream Maintenance
Keep your custom browser fork current with upstream releases. We port features, resolve merge conflicts, update patches, and maintain compatibility across Chromium and Firefox version upgrades.
Browser & Extension QA
Browser & Extension Testing
Quality assurance for custom browser builds and extensions. Compatibility testing across platforms and browser versions, performance profiling, and security review.
AI Integration
Not a standalone AI service. Always framed as a capability added to browser/extension/desktop projects.
AI & ML Integration for Browser Software
AI-powered features embedded into browsers, extensions, and desktop apps. Smart search, content analysis, automated workflows, and ML model integration — built into the products we develop.
Frequently Asked Questions
Yes. We can join mid-project, audit your current implementation, and continue development on existing Chromium/Gecko forks, extensions, or desktop wrappers.
Ready to Work With the Best Browser Development Team?
Custom browser, extension, desktop app, or all three — tell us what you need. We'll tell you exactly how we'd build it.