---
title: "Oxford Learner's Dictionary Lookup – Chrome extension stats, history and permissions"
description: "726 users, rated 5.00 by 6 people. Version 1.1.0, updated 2026-02-04. Requests 5 permissions."
url: "https://extensiontracker.com/extension/onljnjnbfggbdnobigopggefjpkoojjj"
---

# Oxford Learner's Dictionary Lookup

Live in the Chrome Web Store.

- Users: 726
- Rating: 5.00 from 6 ratings
- Last checked: 2026-09-27 07:07 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #28,490 of 264,704 live extensions
- Rank in Tools: #7,755 of 103,503

## The listing

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

Summary from the listing:

> Quick lookup words in Oxford Learner's Dictionary with UK and US support.

- Extension ID: `onljnjnbfggbdnobigopggefjpkoojjj`
- Developer: [https://getmarkview.com/](https://extensiontracker.com/developer/ua1b7e68a727aa4d151e4eee101fc3e61)
- Trader status: Not declared a trader under EU law
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2026-02-03
- Last updated: 2026-02-04
- Version: `1.1.0`
- Size: 70.86 KiB
- Minimum Chrome: 88
- Languages (12): Deutsch, English, Indonesia, Tiếng Việt, español, français, português (Brasil), русский, 中文（中国）, 中文（台灣）, 日本語, 한국어
- Website: `https://niftybox.github.io/`
- Support page: `https://github.com/niftybox/ox-lookup-support`
- Chrome Web Store: <https://chromewebstore.google.com/detail/oxford-learners-dictionar/onljnjnbfggbdnobigopggefjpkoojjj>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fonljnjnbfggbdnobigopggefjpkoojjj>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 726 | 5.00 | 6 |

## 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.

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

### Sites

- `*://*/*`: Every website
- `file:///*`: Files on your computer

### Sites where it runs scripts

- `<all_urls>`: Every website
- `file:///*`: Files on your computer
- `https://www.oxfordlearnersdictionaries.com/*`: www.oxfordlearnersdictionaries.com

### Browser features

- `contextMenus`: Add items to the right-click menu
- `declarativeNetRequest`: Block or change network requests, using rules
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [MarkView: Markdown Viewer with Mermaid Diagrams, Math & Export](https://extensiontracker.com/extension/cfopbpknalachedpcddhgbgjoigklien) | 20,000 | 4.98 | 86 | Tools |
| [Loupewire: HTTP Request Inspector, Header Editor and Masked HAR Export](https://extensiontracker.com/extension/dkoclbklglebhboiodckkicoajbcmbjd) | 11 | 5.00 | 2 | Tools |

All 3 extensions by [https://getmarkview.com/](https://extensiontracker.com/developer/ua1b7e68a727aa4d151e4eee101fc3e61).

## 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 07:07 UTC; next check around 2026-09-30.

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

## Cite this page

Extension Tracker. “Oxford Learner's Dictionary Lookup” (onljnjnbfggbdnobigopggefjpkoojjj). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/onljnjnbfggbdnobigopggefjpkoojjj. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_onljnjnbfggbdnobigopggefjpkoojjj,
  title   = {Oxford Learner's Dictionary Lookup (onljnjnbfggbdnobigopggefjpkoojjj)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/onljnjnbfggbdnobigopggefjpkoojjj},
  urldate = {2026-09-28}
}
```

---

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