Is Prolific Darkmode safe?

Low risk

Prolific Darkmode lets Prolific pages read its stable extension-generated sid through external messaging.

The extension injects a page script on Prolific and allows app.prolific.co and app.prolific.com to message it directly. When those pages request constants, the background script returns a stable sid from extension storage along with UI-related values.

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

tsgrgov1.19.0Chrome Web Store
15Risk

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 Prolific Darkmode 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.

  • app.prolific.co

    Prolific Darkmode sends data to app.prolific.co. No other extension we have analysed sends data here.

  • app.prolific.com

    Prolific Darkmode sends data to app.prolific.com. No other extension we have analysed sends data here.

Updated 30 September 2026ihkhjjjbeddbjnldjcnaldcjlblaegmj