I will develop chrome extension, fix bugs, manifest v3 and web automation


About this gig
Need a Chrome extension built, fixed, or migrated to Manifest V3? I handle all three.
WHAT I BUILD
- Custom Chrome extensions popup UI, content scripts, background service workers
- Web automation auto-fill, auto-click, page monitoring, scheduled tasks
- Data scrapers pull data from any site into CSV, Sheets or your API
- AI-powered extensions OpenAI, Claude and Gemini integrations
- API-connected extensions that talk to your backend, CRM or database
- Cross-browser builds for Firefox, Edge and Opera
WHAT I FIX
- Manifest V2 to V3 migration V2 no longer runs in Chrome
- Extensions broken after a Chrome update
- Chrome Web Store rejections and resubmission
- Bugs, permission errors and service worker issues
BUILT WITH
JavaScript, TypeScript, React, Manifest V3, Chrome APIs
WHY ME
- Manifest V3 compliant from day one, no rework later
- Clean, commented source code included in every package you own it
- Tested on real sites before delivery
- Web Store submission handled if you want it
- Fast replies, no ghosting
I don't do fake downloads or install promotion. I build working software.
Message me what the extension should do and which sites it runs on. I reply within the hour.
Get to know Daniyan Ooreofe
n8n Automation Expert, AI Agents, WhatsApp, YouTube Workflow Automation
- FromNigeria
- Member sinceDec 2025
- Avg. response time1 hour
Languages
English, Spanish, French, German
My Portfolio
Other Software Development Services I Offer
FAQ
What is Manifest V3 and does my extension need it?
V3 is Chrome's current extension standard and V2 extensions no longer run. If yours was built before 2023 it almost certainly needs migrating. Send me your manifest.json and I'll check it for free.
Do I get the source code?
Yes, in every package. Full commented source, fully yours. No licensing, no lock-in.
Can you publish it to the Chrome Web Store for me?
Yes. It's included in Premium and available as an extra on Basic and Standard. You'll need a Web Store developer account, which is a one-time $5 fee from Google.
My extension was rejected by the Chrome Web Store. Can you help?
Yes. Send me the rejection email. Most rejections come down to permission scope, a missing privacy policy, or the listing description — all fixable. I fix and resubmit.
Will it work on Firefox and Edge?
Edge runs Chrome extensions almost unchanged. Firefox needs a small port, available as an extra.
Can the extension use AI?
Yes. I integrate OpenAI, Claude or Gemini for summarizing, writing, data extraction or chat inside the extension. You supply the API key.
Can it scrape data from a specific website?
Usually. Send me the URL and the data you need and I'll confirm feasibility before you order. Some sites have protections that make scraping impractical, and I'll tell you honestly rather than take the order.
How long does a typical extension take?
Simple extensions 2 days, multi-feature builds 4 days, full projects with publishing 7 days. If you're on a deadline, message me first and I'll confirm before you order.

