# Copy LaTeX 2

> Hover and click to copy LaTeX expressions on ChatGPT, DeepSeek, Wikipedia, Stack Exchange and other math-related websites.

Canonical page: [https://chrome-stats.com/d/copy-latex2](https://chrome-stats.com/d/copy-latex2)

## Overview

- **ID:** `copy-latex2`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Leander
- **Category:** other
- **Daily users:** 8
- **Weekly downloads:** 1
- **Version:** 1.3.0
- **Last updated:** 2025-11-28
- **First published:** 2025-11-25
- **Size:** 18 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/copy-latex2/)

## Description

CopyLaTeX

A browser extension (Chrome & Firefox) that lets you quickly copy LaTeX code (KaTeX or MathJax) from equations displayed on websites like ChatGPT, DeepSeek, or any blog using mathematical equations. It works simply by hovering over an equation and clicking to copy the LaTeX expression.

Features
<ul><li><strong>Click-to-copy LaTeX</strong> from KaTeX and MathJax equations  </li><li><strong>Hover overlay</strong> showing a “Copy LaTeX” badge  </li><li><strong>Wikipedia &amp; Wikiwand support</strong></li><li><strong>Regex replacement rules</strong>  </li><li>Customizable via the popup UI  </li><li>Useful to automatically fix formatting quirks or tailor LaTeX output</li></ul>
Open Source

The code is available <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/b55d65d2c17fb6f736db93270aa210cf05f414b15feb984902cb223a9b29c734/https%3A//github.com/leander-ow/copy-latex" rel="nofollow">here</a>.

## Rankings

- #37,133 — Overall
- #110 — deepseek
- #222 — wikipedia

## Permissions and access

### Permissions

- `storage`

### Host permissions

- `https://chatgpt.com/*`
- `https://chat.deepseek.com/*`
- `https://math.stackexchange.com/*`
- `https://physics.stackexchange.com/*`
- `https://proofwiki.org/*`
- `https://*.notion.site/*`
- `https://www.notion.so/*`
- `https://*.wikipedia.org/*`
- `https://www.wikiwand.com/*`
- `https://wikimedia.org/*`
- `https://*.wikiversity.org/*`
- `https://*.wikibooks.org/*`
- `https://mathoverflow.net/*`
- `https://publish.obsidian.md/*`
- `https://nbviewer.org/*`
- `https://www.phind.com/*`
- `https://chat.mistral.ai/*`
- `https://librechat-librechat.hf.space/*`
- `https://www.perplexity.ai/*`
- `https://phys.libretexts.org/*`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/copy-latex2)