I will fix and migrate your chrome extension to manifest v3

D
darwin_devv
D
darwin_devv
Darwin A.
fix and migrate your chrome extension to manifest v3
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fix and migrate your chrome extension to manifest v3
Full Screen
Full Screen
fix and migrate your chrome extension to manifest v3fix and migrate your chrome extension to manifest v3fix and migrate your chrome extension to manifest v3

About this gig

Is your Chrome extension broken or rejected by the Chrome Web Store because of Manifest V2? I will migrate it fully to Manifest V3 so it runs again tested, clean, and ready to publish.


What I will do:

Update manifest.json to Manifest V3 format

Convert background pages to service workers

Replace deprecated APIs (webRequest declarativeNetRequest)

Replace XMLHttpRequest with fetch()

Fix content security policy (CSP) errors

Test the migrated extension in Chrome before delivery

Deliver clean, commented source code

Provide a full list of every change made


What I need from you:

Your extension source code as a zip file

A brief description of what it does


Not sure which package you need? Send me a message first. I'll review your code and tell you exactly which plan fits no charge, under 3 hours.


Every delivery includes:

Full migrated source code

Complete changelog of all modifications

Verified working in Chrome

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Testing procedures

  • Frontend framework

    • React.js
    • Vue.js
    • jQuery
    • Bootstrap
    • Tailwind CSS

  • Backend framework

    • Express.js
    • FastAPI
    • Flask
    • Next.js
    • Node.js

Get to know Darwin A.

Darwin A.

Dev Programmer

  • FromChile
  • Member sinceJun 2026
  • Avg. response time1 hour

  • Languages

    Spanish, English
I'm a full-stack developer with hands-on experience building Chrome extensions, web applications, scripts, and browser tools from the ground up. I work with JavaScript, Python, HTML/CSS, and modern APIs — covering everything from frontend interfaces to backend logic and browser-level automation. Send me a message before ordering. I review every project personally and tell you exactly what's possible, how long it takes, and what it costs. No surprises.

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