---
title: "Monochrome Filter for Specific Sites – Chrome extension stats, history and permissions"
description: "568 users, rated 4.60 by 5 people. Version 1.1, updated 2026-03-16. Requests 4 permissions."
url: "https://extensiontracker.com/extension/bfegjilfakhddkdflkddedmjginokoei"
---

# Monochrome Filter for Specific Sites

Live in the Chrome Web Store.

- Users: 568
- Rating: 4.60 from 5 ratings
- Last checked: 2026-09-26 22:20 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #31,933 of 264,702 live extensions
- Rank in Social Networking: #1,304 of 7,022

## The listing

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

Summary from the listing:

> Makes the browser monochrome only when visiting specified sites.

- Extension ID: `bfegjilfakhddkdflkddedmjginokoei`
- Developer: [junki.asano](https://extensiontracker.com/developer/u8a97b20e53c4fa56748e8cd50caf04b7)
- Category: [Lifestyle › Social Networking](https://extensiontracker.com/category/lifestyle/social)
- First published: 2024-05-28
- Last updated: 2026-03-16
- Version: `1.1`
- Size: 22.52 KiB
- Minimum Chrome: 88
- Languages (1): 日本語
- Privacy policy: `https://github.com/nash-efp/monochrome-extension`
- Chrome Web Store: <https://chromewebstore.google.com/detail/monochrome-filter-for-spe/bfegjilfakhddkdflkddedmjginokoei>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=bfegjilfakhddkdflkddedmjginokoei>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 568 | 4.60 | 5 |

## 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.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website

### Browser features

- `scripting`: Run scripts on sites it can reach
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Productivity Guard](https://extensiontracker.com/extension/jgbdhnleppnldlggimlkepeaddepjhid) | 4 | – | – | Developer Tools |

All 2 extensions by [junki.asano](https://extensiontracker.com/developer/u8a97b20e53c4fa56748e8cd50caf04b7).

## 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 22:20 UTC; next check around 2026-09-30.

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

## Cite this page

Extension Tracker. “Monochrome Filter for Specific Sites” (bfegjilfakhddkdflkddedmjginokoei). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/bfegjilfakhddkdflkddedmjginokoei. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_bfegjilfakhddkdflkddedmjginokoei,
  title   = {Monochrome Filter for Specific Sites (bfegjilfakhddkdflkddedmjginokoei)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/bfegjilfakhddkdflkddedmjginokoei},
  urldate = {2026-09-28}
}
```

---

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