---
title: "CF Themer – Themes & Custom Contests for Codeforces – Chrome extension stats, history and permissions"
description: "5 users, no ratings yet. Version 1.0.0, updated 2026-11-09. Requests 2 permissions."
url: "https://extensiontracker.com/extension/fogjbemaajokjgplblhlibebfjpbdjfd"
---

# CF Themer – Themes & Custom Contests for Codeforces

Live in the Chrome Web Store.

- Users: 5
- Rating: no ratings yet
- Last checked: 2026-11-10 00:04 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #201,487 of 292,131 live extensions
- Rank in Developer Tools: #21,269 of 30,442

## The listing

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

Summary from the listing:

> Customize Codeforces with sleek dark themes, focus mode, problem timers, and custom mashup contests!

- Extension ID: `fogjbemaajokjgplblhlibebfjpbdjfd`
- Developer: [\[redacted\]](https://extensiontracker.com/developer/ue78f2df069248debfd101dd44e7bdeab)
- Enhanced Safe Browsing: Not trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2026-11-09
- Last updated: 2026-11-09
- Version: `1.0.0`
- Size: 47.07 KiB
- Minimum Chrome: 111
- Languages (1): English
- Privacy policy: `https://rigvedrajput.github.io/cf-themer/privacy.html`
- Chrome Web Store: <https://chromewebstore.google.com/detail/cf-themer-%E2%80%93-themes-custom/fogjbemaajokjgplblhlibebfjpbdjfd>
- View its code or download CRX: <https://crxpeek.com/extension/fogjbemaajokjgplblhlibebfjpbdjfd>
- Search Google for the ID: <https://www.google.com/search?q=%22fogjbemaajokjgplblhlibebfjpbdjfd%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-10 | 5 | – | – |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-11-10.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-11-10.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

### Sites

- `https://codeforces.com/api/*`: codeforces.com

### Sites where it runs scripts

- `https://*.codeforces.com/*`: codeforces.com and its subdomains
- `https://codeforces.com/*`: codeforces.com

### 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 again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 2026-11-10 00:04 UTC; next check around 2026-11-16.

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

## Cite this page

Extension Tracker. “CF Themer – Themes & Custom Contests for Codeforces” (fogjbemaajokjgplblhlibebfjpbdjfd). Chrome Web Store data, last checked 2026-11-10. https://extensiontracker.com/extension/fogjbemaajokjgplblhlibebfjpbdjfd. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_fogjbemaajokjgplblhlibebfjpbdjfd,
  title   = {CF Themer – Themes & Custom Contests for Codeforces (fogjbemaajokjgplblhlibebfjpbdjfd)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-10},
  url     = {https://extensiontracker.com/extension/fogjbemaajokjgplblhlibebfjpbdjfd},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/fogjbemaajokjgplblhlibebfjpbdjfd>. 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. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.