---
title: "Cairn - YouTube Course Tracker – Chrome extension stats, history and permissions"
description: "13 users, no ratings yet. Version 1.4.0, updated 2026-09-16. Requests 7 permissions."
url: "https://extensiontracker.com/extension/ipoiephjmljacojnhacbkbfbelicifim"
---

# Cairn - YouTube Course Tracker

Live in the Chrome Web Store.

- Users: 13
- Rating: no ratings yet
- Last checked: 2026-09-27 03:23 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #138,609 of 264,702 live extensions
- Rank in Education: #5,113 of 11,063

## The listing

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

Summary from the listing:

> Finally finish YouTube courses. Auto-track lectures from Stanford CS, MIT OCW, and any playlist. Sync across devices.

- Extension ID: `ipoiephjmljacojnhacbkbfbelicifim`
- Developer: [Chaimantec](https://extensiontracker.com/developer/u022fa8e670de648077f0f71d7e4309f2)
- Category: [Productivity › Education](https://extensiontracker.com/category/productivity/education)
- First published: 2026-04-28
- Last updated: 2026-09-16
- Version: `1.4.0`
- Size: 239 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `cairnstudy.com`
- Chrome Web Store: <https://chromewebstore.google.com/detail/cairn-youtube-course-trac/ipoiephjmljacojnhacbkbfbelicifim>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=ipoiephjmljacojnhacbkbfbelicifim>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 13 | – | – |

## 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

- `*://*.youtube.com/*`: youtube.com and its subdomains
- `https://accounts.google.com/*`: accounts.google.com

### Sites where it runs scripts

- `*://*.youtube.com/*`: youtube.com and its subdomains

### Browser features

- `identity`: Sign you in with your Google account
- `sidePanel`: Show a side panel
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs
- `unlimitedStorage`: Store more data than the usual limit

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Kokoro Speak](https://extensiontracker.com/extension/apfbmojocfgjmleahkfaphoehbphpigm) | 269 | 3.33 | 3 | Accessibility |

All 2 extensions by [Chaimantec](https://extensiontracker.com/developer/u022fa8e670de648077f0f71d7e4309f2).

## 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 03:23 UTC; next check around 2026-10-09.

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

## Cite this page

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

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

---

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