---
title: "Custom CSS by Denis – Chrome extension stats, history and permissions"
description: "20,000 users, rated 4.51 by 81 people. Version 1.4.0, updated 2026-05-04. Requests 3 permissions."
url: "https://extensiontracker.com/extension/cemphncflepgmgfhcdegkbkekifodacd"
---

# Custom CSS by Denis

Live in the Chrome Web Store.

- Users: 20,000
- Rating: 4.51 from 81 ratings
- Last checked: 2026-09-26 23:00 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #3,974 of 264,703 live extensions
- Rank in Workflow & Planning: #1,320 of 44,474

## The listing

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

Summary from the listing:

> Minimal and secure way to add custom CSS per-domain

- Extension ID: `cemphncflepgmgfhcdegkbkekifodacd`
- Developer: [Denis Sokolov](https://extensiontracker.com/developer/ua3b095a4497a7989a59b20a4c56b55fe)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2018-04-28
- Last updated: 2026-05-04
- Version: `1.4.0`
- Size: 159 KiB
- Minimum Chrome: 88
- Languages (2): English, 한국어
- Website: `sokolov.cc`
- Support page: `https://github.com/denis-sokolov/chrome-custom-css/issues`
- Chrome Web Store: <https://chromewebstore.google.com/detail/custom-css-by-denis/cemphncflepgmgfhcdegkbkekifodacd>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fcemphncflepgmgfhcdegkbkekifodacd>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 20,000 | 4.51 | 81 |

## 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.

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `scripting`: Run scripts on sites it can reach
- `storage`: Save settings and data in your browser

### Asked for later, if you agree

- `http://*/`: Every website
- `https://*/`: Every website

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Hide video duration on YouTube by Denis](https://extensiontracker.com/extension/jkgpcmmhejecphgdnihjfgmdpdkhgpke) | 2,000 | 4.00 | 26 | Workflow & Planning |
| [Hide Fixed Elements (packaged by Denis)](https://extensiontracker.com/extension/jfgjldkmonkamcehfffkfblofgimphld) | 1,000 | 5.00 | 10 | Workflow & Planning |
| [Random bookmark by Denis](https://extensiontracker.com/extension/pffanfmkaeilbhcfngndhfajiafhmenf) | 27 | 5.00 | 2 | Workflow & Planning |

All 4 extensions by [Denis Sokolov](https://extensiontracker.com/developer/ua3b095a4497a7989a59b20a4c56b55fe).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-26 23:00 UTC; next check around 2026-09-29.

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

## Cite this page

Extension Tracker. “Custom CSS by Denis” (cemphncflepgmgfhcdegkbkekifodacd). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cemphncflepgmgfhcdegkbkekifodacd. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_cemphncflepgmgfhcdegkbkekifodacd,
  title   = {Custom CSS by Denis (cemphncflepgmgfhcdegkbkekifodacd)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cemphncflepgmgfhcdegkbkekifodacd},
  urldate = {2026-09-28}
}
```

---

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