---
title: "Xposer – Chrome extension stats, history and permissions"
description: "25 users, no ratings yet. Version 4.0.3, updated 2026-10-14. Requests 3 permissions."
url: "https://extensiontracker.com/extension/mnnfjgnafollgnkkfgkfodfidahpmffa"
---

# Xposer

Live in the Chrome Web Store.

- Users: 25
- Rating: no ratings yet
- Last checked: 2026-10-15 05:51 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #112,213 of 292,125 live extensions
- Rank in Developer Tools: #11,174 of 30,444

## The listing

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

Summary from the listing:

> Detects website technologies, versions, and security vulnerabilities using the patternd.io API

- Extension ID: `mnnfjgnafollgnkkfgkfodfidahpmffa`
- Developer: [Michiel Roos](https://extensiontracker.com/developer/u99bab8e18a2b7356cbf890bb0a2e4c7a)
- 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: 2019-12-07
- Last updated: 2026-10-14
- Version: `4.0.3`
- Size: 743 KiB
- Minimum Chrome: 88
- Languages (2): English, Nederlands
- Website: `xposer.io`
- Support page: `https://github.com/michiel-roos/xposer-issues/issues`
- Chrome Web Store: <https://chromewebstore.google.com/detail/xposer/mnnfjgnafollgnkkfgkfodfidahpmffa>
- View its code or download CRX: <https://crxpeek.com/extension/mnnfjgnafollgnkkfgkfodfidahpmffa>
- Search Google for the ID: <https://www.google.com/search?q=%22mnnfjgnafollgnkkfgkfodfidahpmffa%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-10-15 | 25 | – | – |
| 2026-10-13 | 25 | – | – |
| 2026-09-27 | 24 | – | – |

## What changed

Every change found on a check, newest first.

- 2026-10-15: New version `4.0.3`, replacing `4.0.0`.
- 2026-10-15: The summary on the listing changed.
- 2026-10-15: Added the site `https://www.patternd.io/*`. Removed the site `https://www.xposer.io/*`.

## 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.

### Sites

- `https://www.patternd.io/*`: www.patternd.io

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [HTTP Header Spy](https://extensiontracker.com/extension/agnoocojkneiphkobpcfoaenhpjnmifb) | 9,000 | 3.84 | 61 | Developer Tools |

All 2 extensions by [Michiel Roos](https://extensiontracker.com/developer/u99bab8e18a2b7356cbf890bb0a2e4c7a).

## 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 2026-10-15 05:51 UTC; next check around 2026-11-14.

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

## Cite this page

Extension Tracker. “Xposer” (mnnfjgnafollgnkkfgkfodfidahpmffa). Chrome Web Store data, last checked 2026-10-15. https://extensiontracker.com/extension/mnnfjgnafollgnkkfgkfodfidahpmffa. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_mnnfjgnafollgnkkfgkfodfidahpmffa,
  title   = {Xposer (mnnfjgnafollgnkkfgkfodfidahpmffa)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-15},
  url     = {https://extensiontracker.com/extension/mnnfjgnafollgnkkfgkfodfidahpmffa},
  urldate = {2026-11-13}
}
```

---

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