Is Canvas Hack safe?

Medium risk

Canvas Hack hides focus and visibility changes from every HTTP(S) page after paid activation.

After paid activation, Canvas Hack registers a main-world script at document_start on all frames for all HTTP(S) pages. The script changes document visibility and focus APIs and drops focus, blur, visibilitychange, pagehide, pageshow, and related event listeners, so sites cannot observe those states normally. On Canvas quiz pages, it can also read Canvas submission history and fill prior best answers into quiz fields when enabled.

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

blazerhmv1.9Chrome Web Store
40Risk
Who publishes it

blazerhm - 1 other listing from the same operator, none carrying a finding

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

Publisher
blazerhm

Same store account

1 other listing published from this account, 3k+ users between them, none of them carrying a finding.

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

Publishers can request a review.

Where it sends data

Destinations our analysis observed Canvas Hack 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.

  • Canvas LMS origin

    Canvas Hack sends data to Canvas LMS origin. Named as a recipient in this extension's own analysis.

Updated 30 September 2026gfpnfbkflmiijpmfknhjbaoiippanmhh