Is Steamlvlup Card Factory safe?

Clean risk

Steamlvlup Card Factory sends Steam account and card-farming session data to Steamlvlup servers.

When used for card farming, the extension reads Steam account identifiers, session state, and card-drop events from Steam pages. It exchanges a Steamlvlup auth token and forwards the resulting Steam ID, session ID, token, and card-drop messages to Steamlvlup endpoints that support the automated farming workflow.

Steamlvlupv2.0.7Firefox Add-ons
0Risk
Who publishes it

Steamlvlup - no other listings under this identity, 3 shared hostnames

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

Publisher
Steamlvlup

Shared hosts - 3 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.

api.steamlvlup.com
Also called by 1 other listing: SCF
extension.steamlvlup.com
Also called by 1 other listing: SCF
steamlvlup.com
Also called by 1 other listing: SCF

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 2.0.7. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Act on the current tab, but only after you click the extension

    activeTab

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

    tabs

  • Store data in your browser

    storage

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed Steamlvlup Card Factory 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.

  • extension.steamlvlup.com

    Steamlvlup Card Factory sends data to extension.steamlvlup.com. One other extension we have analysed sends data here.

  • steamlvlup.com

    Steamlvlup Card Factory sends data to steamlvlup.com. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2836513