CRX Source Viewer

Name: CRX Source Viewer
Author: Tech Interval LLC

Instantly view, beautify and download the source code of any Chrome, Firefox, or Edge extension. Audit permissions & manifest.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-26

Version:

1.1.0

Last updated: 2026-07-09

Features & Capabilities

CRX Source Viewer lets you look inside any browser extension — Chrome, Firefox, or Edge — in one click. Open the extension's page, click "View Source," and every file inside the package is right there, formatted and searchable.

What makes it different

Most viewers just unzip the archive and leave you staring at minified code. This one automatically beautifies minified JavaScript, CSS, and HTML on open, so you can actually read what an extension does.

The Analysis tab reads the manifest and explains, in plain English, what each permission actually lets the extension do — with risk levels for permissions like "debugger", "cookies", and host access like <all_urls>. If you're deciding whether to trust an extension, that's usually the answer you're looking for.

Features

View the full source of any extension from the Chrome Web Store, Firefox Add-ons, or Edge Add-ons
Auto-beautify minified JavaScript, CSS, and HTML (toggleable)
Analysis tab: permission risk audit, host access breakdown, content-script inspection
File-tree sidebar with folder grouping, type filters, and file search
Full-text search across every file (literal or regular expression)
Syntax highlighting for JS, TS, JSON, HTML, CSS, and more
File hashes: MD5, SHA-1, SHA-256, SHA-384, SHA-512
Download the extension as a clean ZIP or the original signed package
Drag-and-drop a local .crx / .xpi / .zip file into the viewer
Interface available in 30 languages
Dark mode

Privacy

This add-on fetches only the extension packages you ask it to inspect. It collects no analytics and tracks nothing.

User Growth & Download Statistics

Add-on

By:

Tech Interval LLC

Daily users:

Version:

1.1.0 Last updated: 2026-07-09

Version code:

6341827

Creation date:

2026-07-06

Risk:

Permissions:

Host permissions:

https://clients2.google.com/service/update2/crx*
https://clients2.googleusercontent.com/crx/download/*
https://addons.mozilla.org/*
https://*.microsoft.com/*
http://*.microsoft.com/*

Content scripts matches:

chromewebstore.google.com
chrome.google.com
addons.mozilla.org
microsoftedge.microsoft.com

Size:

206.54KB

Email:

te*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-26

Compare stats and ranking:

Ranking

# 143,175 ▲ 1,584

Other rankings

#169 in source code keyword 10 ▲ 1#181 in source keyword 17 ▲ 3

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Tech Interval LLC

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/crx-source-viewer/

Email:

te*****@gmail.com

Website:

https://extensions.techinterval.com/crx-web/

Is CRX Source Viewer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CRX Source Viewer requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

CRX Source Viewer is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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