# LibJS Detector

> Detects the JavaScript libraries running on a page and displays their icons in the address bar.

Canonical page: [https://chrome-stats.com/d/libjs-detector](https://chrome-stats.com/d/libjs-detector)

## Overview

- **ID:** `libjs-detector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Francesco De Stefano
- **Category:** web-development
- **Daily users:** 78
- **Weekly downloads:** 1
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.1.1
- **Last updated:** 2022-06-13
- **First published:** 2020-10-27
- **Size:** 257 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/libjs-detector/)
- **Website:** [https://sourceforge.net/projects/library-detector/](https://sourceforge.net/projects/library-detector/)

## Description

LibJS Detector is a powerful Chrome extension that identifies the JavaScript libraries employed on any webpage you visit. By showcasing the corresponding icons directly in the browser's address bar, it provides developers and tech enthusiasts a quick visual insight into the technologies behind the site. Supporting a wide range of popular frameworks and libraries such as Angular, React, Bootstrap, jQuery, Drupal, Joomla, and many others, it keeps expanding its detection capabilities.

This extension simplifies the process of technology discovery during web development and analysis, boosting productivity by removing guesswork. Whether for learning, competitive research, or debugging, LibJS Detector offers a practical, easy-to-use tool to instantly recognize prominent JS frameworks and libraries behind website functionality.

## Rankings

- #13,105 — Overall
- #27 — detect
- #92 — jquery
- #111 — javascript
- #122 — ai tech
- #135 — shopify

## Permissions and access

### Permissions

- `tabs`
- `http://*/*`
- `https://*/*`

### Content script matches

- `*`

## Safety

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

### Analysis details

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

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