I will build a custom browser extension


About this gig
Do you have an idea for a browser extension but don't know how to build it? I'll turn your idea into a fully working, installable extension for Chrome and Firefox.
I specialize in productivity-focused extensions. Lightweight tools that help you work faster, stay organized, and cut out repetitive tasks right from your browser. No complicated software, no subscriptions, just a clean extension that does exactly what you need.
What I can build:
- Tab managers and organizers
- Focus timers and Pomodoro tools
- Note-taking and quick-save tools
- Custom new tab pages and dashboards
- Reminder and notification tools
- Page modifiers and custom shortcuts
- Any other productivity utility you have in mind
What you'll receive:
- Fully working extension compatible with Chrome and/or Firefox
- Clean, well-structured source code
- Simple installation instructions
- Revisions included (see packages)
Why work with me? I've shipped real products like SendIt (trysendit.app), a live cross-device file transfer web app I built and maintain. You're hiring someone who builds things that actually work.
Send me a message and I'll build the tool for you!
Get to know Silford M
I build stuff for the everyday Internet user
- FromMontserrat
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English
FAQ
Do I need a developer account to use the extension you build?
Not necessarily. For personal use, you can load the extension privately in Chrome or Firefox using Developer Mode. If you want it published to the Chrome Web Store or Firefox Add-ons Hub, that's something we can discuss as an add-on.
Do you provide the source code?
Yes. Every package includes the full source code so you own it completely and can modify it in the future if needed.
What if I don't know exactly what I want?
That's completely fine and common! Send me a message describing the problem you're trying to solve and I'll help you figure out the best approach before you order.
What counts as one "feature"?
A feature is a distinct piece of functionality. For example, a countdown timer, a tab organizer, or a note-saving tool. If you're unsure whether your idea fits within a package, message me and I'll let you know upfront.
Can you build the extension to work on a specific website?
Yes. Content scripts allow extensions to interact directly with specific websites such as reading page content, modifying the UI, automating actions, and more. Just describe the site and what you need it to do.
