---
title: "CKBox – Chrome extension stats, history and permissions"
description: "737 users, rated 4.90 by 10 people. Version 0.33.0, updated 2024-05-29. Requests 2 permissions."
url: "https://extensiontracker.com/extension/jkefllnpggoehndkogpdjndhfidgnchk"
---

# CKBox

Live in the Chrome Web Store.

- Users: 737
- Rating: 4.90 from 10 ratings
- Last checked: 2026-09-27 03:47 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #28,324 of 264,703 live extensions
- Rank in Workflow & Planning: #7,436 of 44,474

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Advanced toolbox for CryptoKitties

- Extension ID: `jkefllnpggoehndkogpdjndhfidgnchk`
- Developer: [Papa](https://extensiontracker.com/developer/u8705ec22a8312f1f5b41d7af1479305a)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2018-06-05
- Last updated: 2024-05-29
- Version: `0.33.0`
- Size: 154 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `https://www.ckbox.co/`
- Chrome Web Store: <https://chromewebstore.google.com/detail/ckbox/jkefllnpggoehndkogpdjndhfidgnchk>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fjkefllnpggoehndkogpdjndhfidgnchk>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 737 | 4.90 | 10 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

### Sites

- `https://*.ckbox.co/*`: ckbox.co and its subdomains

### Sites where it runs scripts

- `https://*.cryptokitties.co/*`: cryptokitties.co and its subdomains

### Browser features

- `storage`: Save settings and data in your browser

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 03:47 UTC; next check around 2026-10-03.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “CKBox” (jkefllnpggoehndkogpdjndhfidgnchk). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/jkefllnpggoehndkogpdjndhfidgnchk. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_jkefllnpggoehndkogpdjndhfidgnchk,
  title   = {CKBox (jkefllnpggoehndkogpdjndhfidgnchk)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/jkefllnpggoehndkogpdjndhfidgnchk},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/jkefllnpggoehndkogpdjndhfidgnchk>. 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`.