---
title: "Professor Prebid – Chrome extension stats, history and permissions"
description: "10,000 users, rated 4.54 by 11 people. Version 0.2.79, updated 2025-12-09. Requests 7 permissions."
url: "https://extensiontracker.com/extension/kdnllijdimhbledmfdbljampcdphcbdc"
---

# Professor Prebid

Live in the Chrome Web Store.

- Users: 10,000
- Rating: 4.54 from 11 ratings
- Last checked: 2026-11-08 18:05 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #5,041 of 292,131 live extensions
- Rank in Developer Tools: #442 of 30,442

## The listing

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

Summary from the listing:

> Extension to validate your prebid.js setup, list AdUnits and bids, visualise latencies and timings of your webpages header-bidding…

- Extension ID: `kdnllijdimhbledmfdbljampcdphcbdc`
- Developer: Not named in the listing
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2022-02-23
- Last updated: 2025-12-09
- Version: `0.2.79`
- Size: 1.09 MiB
- Minimum Chrome: 88
- Languages (1): English
- Chrome Web Store: <https://chromewebstore.google.com/detail/professor-prebid/kdnllijdimhbledmfdbljampcdphcbdc>
- View its code or download CRX: <https://crxpeek.com/extension/kdnllijdimhbledmfdbljampcdphcbdc>
- Search Google for the ID: <https://www.google.com/search?q=%22kdnllijdimhbledmfdbljampcdphcbdc%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-08 | 10,000 | 4.54 | 11 |
| 2026-11-02 | 10,000 | 4.54 | 11 |
| 2026-10-26 | 10,000 | 4.58 | 12 |
| 2026-10-19 | 10,000 | 4.58 | 12 |
| 2026-10-12 | 10,000 | 4.58 | 12 |
| 2026-10-05 | 10,000 | 4.54 | 11 |
| 2026-09-28 | 10,000 | 4.54 | 11 |
| 2026-09-27 | 10,000 | 4.54 | 11 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-09-27.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## 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

- `http://*/`: Every website
- `https://*/`: Every website

### Sites where it runs scripts

- `<all_urls>`: Every website
- `http://*/*`: Every website
- `https://*/*`: 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
- `unlimitedStorage`: Store more data than the usual limit
- `webNavigation`: Follow your browsing, page by page

## 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 2026-11-08 18:05 UTC; next check around 2026-11-16.

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

## Cite this page

Extension Tracker. “Professor Prebid” (kdnllijdimhbledmfdbljampcdphcbdc). Chrome Web Store data, last checked 2026-11-08. https://extensiontracker.com/extension/kdnllijdimhbledmfdbljampcdphcbdc. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_kdnllijdimhbledmfdbljampcdphcbdc,
  title   = {Professor Prebid (kdnllijdimhbledmfdbljampcdphcbdc)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-08},
  url     = {https://extensiontracker.com/extension/kdnllijdimhbledmfdbljampcdphcbdc},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/kdnllijdimhbledmfdbljampcdphcbdc>. 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. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.