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I will build any browser extension for chrome firefox or edge
Sohan R. Emon
Level 2
About this gig
I build custom browser extensions for Chrome, Firefox, and Edge, whether you have a fully spec'd idea or just a rough concept of what you want the extension to do.
What I can build:
- Productivity tools (page modifiers, auto-fill, note-taking overlays)
- Web automation extensions (auto-clickers, form-fillers, scraping-adjacent tools)
- Business tools (CRM sidebars, price trackers, lead capture widgets)
- Extensions that call your own API or a third-party service
- Fixes, updates, or Manifest V2 V3 migrations for an extension you already have
Tech stack: JavaScript/TypeScript, Manifest V3, Chrome Extension APIs, WebExtensions API for Firefox compatibility.
Before you order: Send me a short description of what the extension should do, and which browser(s) it needs to support. If you already have an existing extension that needs fixing or updating, share the current code or store listing and I'll scope it from there.
Get to know Sohan R. Emon
Sohan R. Emon
AI Integrated Full Stack Engineer
Level 2
- FromBangladesh
- Member sinceMar 2022
- Avg. response time1 hour
- Last delivery2 weeks
Languages
Bengali, English, Hindi, Urdu
I'm Sohan, an AI-integrated full-stack engineer with a BSc in Computer Science and 3+ years building real products.
I specialize in building AI-powered SaaS apps and web platforms with Next.js, React Native, TypeScript and PostgreSQL. AI-driven features, dashboards, marketing sites, full web apps with auth, database and complex animation. I handle it start to finish.
I write code that's clean, maintainable, and makes sense to read later. I also work with Astro, Svelte, Supabase, Tailwind, ThreeJS, Strapi and Sanity CMS.
If you want someone who delivers what they promise, I'm your guy.
Among my clients
20lab
My Portfolio
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FAQ
Can the same extension work on Chrome, Firefox, and Edge?
Yes, Chrome and Edge share the same extension APIs (Chromium-based) so that's usually a small lift. Firefox uses a similar but not identical API, full cross-browser support is available in Standard/Premium.
Can you publish it to the Chrome Web Store for me?
Yes, available as an add-on or included in Premium. You'll need your own developer account (I can walk you through setting one up if you don't have one).
I already have an extension that's broken or outdated. Can you fix it?
Yes, send me the existing code or store link and I'll quote based on what needs fixing, including Manifest V2 to V3 migrations, which many older extensions now need.
Do I own the code?
Yes, full source code is yours, no lock-in.
Can the extension call my own backend or a third-party API?
Yes, this is common and included starting at Standard.
