Is Old Layout for Facebook safe?

Clean risk

Changes Facebook’s user-agent string to show the pre-September 2020 layout.

This extension reverts Facebook to the older layout by changing the browser user-agent string to one that the newer layout does not support. It runs on facebook.com pages and can store extension settings locally.

ModernKit.oneFirefox Add-ons
0Risk
Who publishes it

ModernKit.one - no other listings under this identity, 2 shared hostnames

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

Publisher
ModernKit.one

Shared hosts - 2 hostnames

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.

oldlayout.com
Also called by 1 other listing: Old Layout for Facebook
socialfixer.com
Also called by 2 other listings: Social Fixer for Facebook, Social Fixer

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 Old Layout for Facebook 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.

  • facebook.com

    Old Layout for Facebook sends data to facebook.com. 9 other extensions we have analysed send data here.

Updated 15 October 2026amo-2659578