---
title: "Learning – Chrome extension stats, history and permissions"
description: "4,000 users, rated 4.96 by 47 people. Version 3.0.9, updated 2023-06-02. Requests 4 permissions."
url: "https://extensiontracker.com/extension/pdkhfkjcfgiemfbnabpdffjhfmocokbg"
---

# Learning

Live in the Chrome Web Store.

- Users: 4,000
- Rating: 4.96 from 47 ratings
- Last checked: 2026-09-27 07:21 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #11,220 of 264,702 live extensions
- Rank in Workflow & Planning: #3,487 of 44,474

## The listing

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

Summary from the listing:

> A helper for xuexi.cn

- Extension ID: `pdkhfkjcfgiemfbnabpdffjhfmocokbg`
- Developer: [ttglad](https://extensiontracker.com/developer/u6272b62a13ae78b40cc47bcfd3bf32ec)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2022-05-30
- Last updated: 2023-06-02
- Version: `3.0.9`
- Size: 86.53 KiB
- Minimum Chrome: 88
- Languages (2): English, 中文（中国）
- Support page: `https://github.com/ttglad/learning`
- Chrome Web Store: <https://chromewebstore.google.com/detail/%E5%AD%A6%E4%B9%A0/pdkhfkjcfgiemfbnabpdffjhfmocokbg>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=pdkhfkjcfgiemfbnabpdffjhfmocokbg>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 4,000 | 4.96 | 47 |

## 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

- `*://*.xuexi.cn/*`: xuexi.cn and its subdomains

### Sites where it runs scripts

- `*://*.xuexi.cn/*`: xuexi.cn and its subdomains
- `*://pc.xuexi.cn/points/exam-paper-detail.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/exam-paper-list.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/exam-practice.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/exam-weekly-detail.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/exam-weekly-list.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/login.html*`: pc.xuexi.cn
- `*://pc.xuexi.cn/points/my-points.html*`: pc.xuexi.cn
- `*://www.xuexi.cn/lgpage/detail/index.html*`: www.xuexi.cn

### Browser features

- `notifications`: Show notifications
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

## 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 2026-09-27 07:21 UTC; next check around 2026-09-30.

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

## Cite this page

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

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

---

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