---
title: "CF Gym Lens – Chrome extension stats, history and permissions"
description: "61 users, no ratings yet. Version 1.1.1, updated 2026-02-25. Requests 0 permissions."
url: "https://extensiontracker.com/extension/cjojbbpjnbcdbikenmcmidpjicpdflac"
---

# CF Gym Lens

Live in the Chrome Web Store.

- Users: 61
- Rating: no ratings yet
- Last checked: 2026-09-26 23:12 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #79,027 of 264,703 live extensions
- Rank in Developer Tools: #7,370 of 27,615

## The listing

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

Summary from the listing:

> Adds a Gyms tab to Codeforces user profiles showing gym participation history

- Extension ID: `cjojbbpjnbcdbikenmcmidpjicpdflac`
- Developer: [None](https://extensiontracker.com/developer/u364582272979a4c55cc33d3cc9081e5c)
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-02-19
- Last updated: 2026-02-25
- Version: `1.1.1`
- Size: 1.29 MiB
- Minimum Chrome: 88
- Languages (1): English (United States)
- Privacy policy: `https://gist.github.com/Machamelli/ae585966af86bdc257cb4d4705359800`
- Chrome Web Store: <https://chromewebstore.google.com/detail/cf-gym-lens/cjojbbpjnbcdbikenmcmidpjicpdflac>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fcjojbbpjnbcdbikenmcmidpjicpdflac>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 61 | – | – |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Sites where it runs scripts

- `*://codeforces.com/profile/*`: codeforces.com
- `*://www.codeforces.com/profile/*`: www.codeforces.com

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [CF Cheater Highlighter](https://extensiontracker.com/extension/opofknedijjngkogioclmacelmddmfch) | 532 | 5.00 | 2 | Developer Tools |
| [CF Round Filter](https://extensiontracker.com/extension/nablppddfhgjfknaljkchaffgahhhmdh) | 41 | – | – | Developer Tools |

All 3 extensions by [None](https://extensiontracker.com/developer/u364582272979a4c55cc33d3cc9081e5c).

## 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 2026-09-26 23:12 UTC; next check around 2026-10-24.

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

## Cite this page

Extension Tracker. “CF Gym Lens” (cjojbbpjnbcdbikenmcmidpjicpdflac). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cjojbbpjnbcdbikenmcmidpjicpdflac. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_cjojbbpjnbcdbikenmcmidpjicpdflac,
  title   = {CF Gym Lens (cjojbbpjnbcdbikenmcmidpjicpdflac)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cjojbbpjnbcdbikenmcmidpjicpdflac},
  urldate = {2026-09-28}
}
```

---

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