Is SE Chat MathJax safe?

Low risk

SE Chat MathJax loads MathJax code from cdnjs into Stack Exchange chat pages.

When a Stack Exchange chat room finishes loading, SE Chat MathJax injects its Jax.js script into the page. That script adds MathJax from cdnjs.cloudflare.com at runtime so the remote code can render math in the chat page.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

David Freitagv1.4.0Chrome Web Store
15Risk
Who publishes it

David Freitag - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.4.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on chat.stackexchange.com

    *://chat.stackexchange.com/rooms/*

  • See the address and title of every tab you have open

    tabs

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed SE Chat MathJax contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • cdnjs.cloudflare.comwidely used

    SE Chat MathJax sends data to cdnjs.cloudflare.com. A widely used service: 50 other extensions we have analysed send data here.

Updated 30 September 2026jkohnpfocfllikbgkfdcghgjgejcfhjb