Is Turn Off the Lights for Firefox safe?

Low risk

Turn Off the Lights for Firefox dims video backgrounds and injects night-mode styles across all pages, with a link-click handler that lets any visited page overwrite the extension's color settings.

The extension is a video-dimming utility that darkens the area around embedded video players and applies customizable night-mode colors to every page you visit. Its content script runs on all URLs and listens for anchor clicks using the turnoffthelights:// scheme, which — if triggered by a link on any page — writes color values directly to chrome.storage.sync without verifying the page's origin. No user data is collected or transmitted externally.

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

Stefan vdv4.7.0Firefox Add-ons
18Risk
Who publishes it

Stefan vd - 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
Stefan vd

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.

turnoffthelights.com
Also called by 5 other listings, including Turn Off the Lights, Turn Off the Lights

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 4.7.0. 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 every site you visit

    <all_urls>

  • Add items to the right-click menu

    contextMenus

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

    tabs

  • Store data in your browser

    storage

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Run its own code inside the pages you visit

    scripting

theme
Updated 2 November 2026amo-255270