The short version
CanvasBlocker — Firefox extension that alters JS APIs to blunt fingerprinting.
From the HackerLinks archive
CanvasBlocker
CanvasBlocker — Firefox extension that alters JS APIs to blunt fingerprinting.
At a glance:
First seen:2026-05-31
Last seen:2026-05-31
Times seen:1
Website:github.com
Why it caught our attention
Commenters pointed to it as a working browser-side workaround against fingerprint-heavy pages.
Where it surfaced on Hacker News
2026-05-31
Editorial paraphrase
A commenter said they had used it for a long time and that it got through the Turnstile page.
Original threadCloudflare Turnstile requiring fingerprintable WebGL
Also surfaced in this discussion