---
title: "LeagueSync – Chrome extension stats, history and permissions"
description: "6,000 users, rated 5.00 by 11 people. Version 1.1, updated 2021-09-17. Requests 6 permissions."
url: "https://extensiontracker.com/extension/ilcnmagcflfonapkhnpioknnnjeomhad"
---

# LeagueSync

Live in the Chrome Web Store.

- Users: 6,000
- Rating: 5.00 from 11 ratings
- Last checked: 2026-09-27 03:11 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #9,477 of 264,702 live extensions
- Rank in Entertainment: #166 of 6,136

## The listing

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

Summary from the listing:

> A supplemental Chrome extension for 4for4.com LeagueSync to sync ESPN leagues.

- Extension ID: `ilcnmagcflfonapkhnpioknnnjeomhad`
- Developer: [Betsperts Media & Technology Group](https://extensiontracker.com/developer/ucf02fa79bff0f0f8f5abcb7c65658060)
- Category: [Lifestyle › Entertainment](https://extensiontracker.com/category/lifestyle/entertainment)
- First published: 2021-09-12
- Last updated: 2021-09-17
- Version: `1.1`
- Size: 64.83 KiB
- Minimum Chrome: 88
- Languages (1): English
- Support page: `https://support.4for4.com/support/home`
- Chrome Web Store: <https://chromewebstore.google.com/detail/leaguesync/ilcnmagcflfonapkhnpioknnnjeomhad>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=ilcnmagcflfonapkhnpioknnnjeomhad>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 6,000 | 5.00 | 11 |

## 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

- `*://*.4for4.com/*`: 4for4.com and its subdomains
- `*://*.espn.com/*/*`: espn.com and its subdomains
- `*://*.pre.4for4.com/*`: pre.4for4.com and its subdomains
- `*://localhost/*`: localhost

### Browser features

- `cookies`: Read and change cookies on the sites it can reach
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Bleacher Nation Fantasy App (formerly Fantasy Life App) ESPN Connect](https://extensiontracker.com/extension/jbngaielcfiokkmffphnmjbcdnlaobii) | 359 | – | – | Entertainment |

All 2 extensions by [Betsperts Media & Technology Group](https://extensiontracker.com/developer/ucf02fa79bff0f0f8f5abcb7c65658060).

## 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 03:11 UTC; next check around 2026-10-01.

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

## Cite this page

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

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

---

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