# XML Viewer Plus

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

Canonical page: [https://chrome-stats.com/d/xml-viewer](https://chrome-stats.com/d/xml-viewer)

## Overview

- **ID:** `xml-viewer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Francesco De Stefano
- **Category:** web-development,other
- **Daily users:** 3,875
- **Weekly downloads:** 49
- **Rating:** 3.20 / 5 (20 ratings)
- **Version:** 1.2.6
- **Last updated:** 2019-06-17
- **First published:** 2019-04-16
- **Size:** 122 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/xml-viewer/)
- **Website:** [https://sourceforge.net/projects/xml-viewer-plus/](https://sourceforge.net/projects/xml-viewer-plus/)

## Description

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.

## Rankings

- #1,415 — Overall
- #153 — Web Development
- #215 — Other extensions
- #4 — jquery
- #7 — viewer
- #62 — plug

## Permissions and access

### Permissions

- `<all_urls>`
- `webRequest`
- `webRequestBlocking`
- `contextMenus`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

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)

## Similar extensions and apps

- [BetterXML](https://chrome-stats.com/d/betterxml) — 141 users, 5.00 / 5
- [Styled XML Viewer](https://chrome-stats.com/d/styled-xml-viewer) — 145 users, 5.00 / 5
- [Pretty XML](https://chrome-stats.com/d/pretty-xml) — 3,163 users, 4.53 / 5
- [Xwift — XML Viewer & Formatter](https://chrome-stats.com/d/xwift-xml-viewer-formatter) — 1 users
- [JSON + XML Viewer](https://chrome-stats.com/d/json-xml-viewer) — 2 users
- [Source Code & Font Viewer — HTML/CSS/JS/JSON/XML](https://chrome-stats.com/d/source-code-viewer) — 15 users, 4.50 / 5
- [XML Validator](https://chrome-stats.com/d/xml-validator) — 8 users
- [Lumina XML Pro Viewer](https://chrome-stats.com/d/lumina-xml-pro-viewer) — 6 users
- [Universal File Viewer](https://chrome-stats.com/d/universal-file-viewer) — 1 users
- [Fire Source Viewer](https://chrome-stats.com/d/fire-source-viewer) — 228 users, 4.89 / 5
- [Try XPath](https://chrome-stats.com/d/try-xpath) — 1,796 users, 4.23 / 5
- [Quick Source Code Viewer](https://chrome-stats.com/d/quick-source-code-viewer) — 1 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/xml-viewer)