Is Spector.js safe?

Clean risk

Spector.js captures WebGL command data from pages after the user starts a capture.

Spector.js injects its capture library into HTTP, HTTPS, and file pages when the user activates a capture. It records WebGL command data from the page, sends the captured chunks to the extension background script, and opens a local results page for viewing.

BabylonJSv0.9.28Firefox Add-ons
1Risk
Who publishes it

BabylonJS - no other listings under this identity, 1 shared hostname

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

Publisher
BabylonJS

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

spector.babylonjs.com
Also called by 3 other listings, including Spector.js

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 0.9.28. 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 every site you visit

    http://*/*

  • Read and change your data on every secure site you visit

    https://*/*

Updated 30 September 2026amo-811597