Universal File Viewer

Name: Universal File Viewer
Author: walid ahdouf

Beautify and highlight JSON, YAML, XML, CSV, and TOML files with syntax highlighting, tree view, and formatting tools directly in Firefox browser tabs.

This add-on was removed from Firefox Add-ons Store on 2026-04-27

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Features & Capabilities

Transform raw data files into beautifully formatted, syntax-highlighted documents with interactive features. Supports JSON, YAML, XML, CSV, and TOML formats with automatic detection. Features include:

• Syntax highlighting with multiple themes • Interactive tree view for JSON/YAML structures• Raw/formatted view toggle • Copy to clipboard functionality • Download formatted files • Customizable settings (line numbers, indentation, themes) • Statistics tracking for file usage

Perfect for developers, data analysts, and anyone working with structured data files. No external dependencies required - works entirely offline.

User Growth & Download Statistics

Add-on

By:

walid ahdouf

Daily users:

Version:

3.0.1 Last updated: 2026-04-25

Version code:

6062865

Creation date:

2025-09-22

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

125.19KB

Email:

ah*****@gmail.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-04-27

Compare stats and ranking:

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:

walid ahdouf

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/universal-file-viewer/

Email:

ah*****@gmail.com

Is Universal File 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.

Universal File Viewer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

Universal File Viewer may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.