---
title: "Cat Ears Extension – Chrome extension stats, history and permissions"
description: "445 users, rated 5.00 by 4 people. Version 0.9.1, updated 2023-05-21. Requests 0 permissions."
url: "https://extensiontracker.com/extension/gefcmkbpjdghaedopnadpbeamcdhjbfn"
---

# Cat Ears Extension

Live in the Chrome Web Store.

- Users: 445
- Rating: 5.00 from 4 ratings
- Last checked: 2026-09-27 01:37 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #35,677 of 264,702 live extensions
- Rank in Just for Fun: #2,102 of 9,242

## The listing

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

Summary from the listing:

> Adds cat ears to the logos of major websites.

- Extension ID: `gefcmkbpjdghaedopnadpbeamcdhjbfn`
- Developer: [Y&J Labs](https://extensiontracker.com/developer/u354aa1c1d5729b4e8cec07b959dbe01c)
- Category: [Lifestyle › Just for Fun](https://extensiontracker.com/category/lifestyle/fun)
- First published: 2023-05-14
- Last updated: 2023-05-21
- Version: `0.9.1`
- Size: 3.2 MiB
- Minimum Chrome: 88
- Languages (1): English
- Chrome Web Store: <https://chromewebstore.google.com/detail/cat-ears-extension/gefcmkbpjdghaedopnadpbeamcdhjbfn>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=gefcmkbpjdghaedopnadpbeamcdhjbfn>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 445 | 5.00 | 4 |

## 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 where it runs scripts

- `https://*.amazon.com/*`: amazon.com and its subdomains
- `https://*.facebook.com/*`: facebook.com and its subdomains
- `https://*.github.com/*`: github.com and its subdomains
- `https://*.tiktok.com/*`: tiktok.com and its subdomains
- `https://*.twitter.com/*`: twitter.com and its subdomains
- `https://*.youtube.com/*`: youtube.com and its subdomains

## 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 01:37 UTC; next check around 2026-10-18.

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

## Cite this page

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

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

---

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