---
title: "Quick source viewer – Chrome extension stats, history and permissions"
description: "20,000 users, rated 3.24 by 115 people. Version 1.5.1, updated 2025-07-31. Requests 1 permission."
url: "https://extensiontracker.com/extension/cfmcghennfbpmhemnnfjhkdmnbidpanb"
---

# Quick source viewer

Live in the Chrome Web Store.

- Users: 20,000
- Rating: 3.24 from 115 ratings
- Last checked: 2026-11-06 08:25 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #3,895 of 292,131 live extensions
- Rank in Developer Tools: #343 of 30,442

## The listing

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

Summary from the listing:

> View current page sources: HTML + Javascript + CSS

- Extension ID: `cfmcghennfbpmhemnnfjhkdmnbidpanb`
- Developer: [Tomi Mickelsson](https://extensiontracker.com/developer/uda26cea50bf437cd909a68b3e680ba6a)
- 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: 2012-07-09
- Last updated: 2025-07-31
- Version: `1.5.1`
- Size: 76.16 KiB
- Minimum Chrome: 88
- Languages (1): English (United States)
- Support page: `https://tomicloud.com/2012/07/viewsrc-chrome-ext`
- Chrome Web Store: <https://chromewebstore.google.com/detail/quick-source-viewer/cfmcghennfbpmhemnnfjhkdmnbidpanb>
- View its code or download CRX: <https://crxpeek.com/extension/cfmcghennfbpmhemnnfjhkdmnbidpanb>
- Search Google for the ID: <https://www.google.com/search?q=%22cfmcghennfbpmhemnnfjhkdmnbidpanb%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-06 | 20,000 | 3.24 | 115 |
| 2026-10-30 | 20,000 | 3.24 | 115 |
| 2026-10-22 | 20,000 | 3.24 | 115 |
| 2026-10-15 | 20,000 | 3.24 | 115 |
| 2026-10-08 | 20,000 | 3.60 | 115 |
| 2026-09-30 | 20,000 | 3.60 | 115 |
| 2026-09-26 | 20,000 | 3.60 | 115 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## 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 2026-09-26.

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 where it runs scripts

- `*://*/*`: Every website

### Browser features

- `storage`: Save settings and data in your browser

## 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 2026-11-06 08:25 UTC; next check around 2026-11-13.

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

## Cite this page

Extension Tracker. “Quick source viewer” (cfmcghennfbpmhemnnfjhkdmnbidpanb). Chrome Web Store data, last checked 2026-11-06. https://extensiontracker.com/extension/cfmcghennfbpmhemnnfjhkdmnbidpanb. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_cfmcghennfbpmhemnnfjhkdmnbidpanb,
  title   = {Quick source viewer (cfmcghennfbpmhemnnfjhkdmnbidpanb)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-06},
  url     = {https://extensiontracker.com/extension/cfmcghennfbpmhemnnfjhkdmnbidpanb},
  urldate = {2026-11-13}
}
```

---

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