---
title: "Maks Kowalski – Chrome extensions from this developer"
description: "1 Chrome extension from the publisher account of Maks Kowalski, with 20,000 users in all."
url: "https://extensiontracker.com/developer/uf429e55ac72a6269a5f7a4633d2f1344"
---

# Maks Kowalski

- Extensions: 1
- Users in all: 20,000
- First published: 2021-02-09
- Publisher account: `uf429e55ac72a6269a5f7a4633d2f1344`
- Trader status: Not declared a trader under EU law

Extensions are grouped by the store's own publisher account ID, so a developer who uses several accounts appears on several pages. Live extensions come first, most users first.

| Extension | Category | Users | Rating | Updated | Status |
| --- | --- | ---: | ---: | --- | --- |
| [LibrusPro - rozszerzenie do Librusa](https://extensiontracker.com/extension/hoceldjnkcboafconokadmmbijbegdkf) | Education | 20,000 | 4.95 | 2024-09-12 | Live |

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/developer/uf429e55ac72a6269a5f7a4633d2f1344>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.