ERIK KOS

@erikkoss

Chrome Developer

Slovenia
Slovenian, English, Italian
About me
Hi, I'm Erik. I build Chrome extensions that do one job, and do it well. My latest project is Feed Focus, which removes Reels, Shorts and endless feeds from Instagram, YouTube and Facebook, with a clean settings window and a switch for every feature. I can help with: • Custom Chrome and Firefox extensions (Manifest V3) • Blocking, hiding or changing parts of any website • Simple, good-looking popup and settings screens • Icons, screenshots and publishing to the Chrome Web Store Tell me what you want your browser to do, and I'll turn it into a working extension.... Read more

Skills

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erikkoss
ERIK KOS
Offline • 
Average response time: 1 hour

See my services

Browser Extensions
I will build a custom chrome extension for you
From$35 / projectMore details
Scripting
I will build advanced google sheets automations for your business
From$40 / projectMore details

Portfolio

Work experience

Upwork

Freelance Web & Automation Developer

Upwork • Freelance

Oct 2025 - Nov 2026 • 1 yr 1 mo

Freelance Web & Automation Developer — Self-employed November 2025 – present • Built Feed Focus, a Chrome/Firefox extension that blocks Reels, Shorts and feeds on Instagram, YouTube and Facebook, and prepared it for the Chrome Web Store • Designed and built Copen Club Europe, an animated community website with a forum, events and a custom car animation • Built Google Sheets automations with Apps Script: dashboards, automatic emails and scheduled reports