XML Viewer Plus

Name: XML Viewer Plus
Rating: 3.2 (20 reviews)
Author: Francesco De Stefano

By: Francesco De Stefano

A powerful XML Viewer, supports text/regex and jQuery/CSS, XPath selectors

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Features & Capabilities

XML Viewer Plus is a robust browser extension designed for viewing and analyzing XML content efficiently. It supports both CSS and XPath selectors and allows users to perform text and regular expression searches within XML documents. The extension offers versatility with options for querySelectorAll and jQuery-style selectors, making it suitable for developers and XML data analysts.

Optimized for handling large XML files over 1MB, XML Viewer Plus ensures high performance without sacrificing usability. The extension integrates seamlessly with web pages via a context menu to pass selected XML code. As an open-source project, it maintains transparency and encourages community contributions. Limitations include compatibility only with sites permitting content scripts.

User Growth & Download Statistics

Add-on Developer Tools

By:

Daily users:

Rating:

Version:

1.2.6 Last updated: 2019-06-17

Version code:

4487795

Creation date:

2019-04-16

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

122.01KB

Email:

ul*****@mediamaster.eu

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 1,390 ▲ 3

Other rankings

#155 in Web Development ▼ 1

#223 in Other extensions ▼ 1

#4 in jquery keyword 18

#7 in viewer keyword 62

#60 in plug keyword 23 ▼ 2

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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:

Francesco De Stefano

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/xml-viewer/

Email:

ul*****@mediamaster.eu

Website:

https://sourceforge.net/projects/xml-viewer-plus/

User Reviews

Users like the add-on’s visual design (dark theme) and its selector/search features plus the context‑menu workflow. Repeated complaints: it often fails to auto-detect or render XML (especially for non-.xml URLs or local files), sometimes shows blank pages or false XML errors, and frequently requires manual selection/use of the context menu to process content.

Pros

Attractive, well-designed UI with a dark theme (multiple users praised appearance)
Built-in selector/search features (CSS/jQuery/regex) that users find useful
Provides a scoped/context-menu option to send content to the viewer (manual processing workflow)

Cons

Does not reliably auto-detect or display XML on many URLs (fails for resources not ending in .xml, different extensions, or file://)
Shows plain/blank pages or reports valid XML as invalid for some files/URLs
Often requires manual selection/send via the context menu to process XML (limited or partial automatic processing)

Recent reviews

by Gr*****, 2026-04-23

When opening a link that contains XML, it shows the same thing as without the plugin — just plain text. I tried calling it from the context menu, but got an error saying the XML is invalid… even though it’s not.

by Ol*****, 2025-11-03

recommand to add

by Fi*****, 2025-07-02

View all user reviews ›

Is XML Viewer Plus 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.

XML Viewer Plus 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.

XML Viewer Plus has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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