I will develop any chrome, firefox, edge browser extension or custom script


About this gig
Looking for a custom browser extension for Chrome, Firefox, or Microsoft Edge? You're in the right place! I develop secure, fast, and feature-rich browser extensions tailored to your needs.
Services I Offer:
- Chrome Extension Development (Manifest V2 & V3)
- Firefox Add-on Development
- Microsoft Edge Extension
- Cross-Browser Compatibility
- API Integration
- Browser Automation
- Data Extraction & Web Scraping
- Content & Background Scripts
- Popup, Options & Settings Pages
- Authentication & Login
- Local Storage, IndexedDB & Sync Storage
- Bug Fixes & Feature Enhancements
I write clean, scalable, and well-documented code using JavaScript, TypeScript, HTML, CSS, React, and modern web technologies.
Why Choose Me?
- Custom solutions
- Fast delivery
- Secure & optimized code
- Excellent communication
- Post-delivery support
Contact me before placing your order to discuss your project requirements.
Get to know Oscar
From Concept to Code
- FromUnited States
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, French
Other Software Development Services I Offer
FAQ
Can you develop extensions for all browsers?
Yes! I build extensions for Chrome, Firefox, Microsoft Edge, and cross-browser WebExtensions.
Can you integrate APIs?
Absolutely. I can integrate REST APIs, third-party services, AI APIs, payment APIs, and more.
Can you publish my extension?
Yes, I can prepare and publish your extension to the Chrome Web Store, Firefox Add-ons, and Microsoft Edge Add-ons (store fees, if any, are the buyer's responsibility).
Will my extension work on Manifest V3?
Yes. I develop using the latest Manifest V3 standards and can also support Manifest V2 when required.
Do you fix existing extensions?
Yes. I can debug, optimize, update, or add new features to your existing browser extension.
