Is SteamAuth safe?

Clean risk

SteamAuth lets its server request your Steam login cookie and create or accept Steam trades through a socket.

The extension keeps a connection open to wss.steamauth.app, which can send jobs that return your steamLoginSecure cookie or create, accept, cancel and decline Steam trade offers using your session. Jobs are approved automatically by default for partner sites. It also sends the steamLoginSecure cookie to www.steamwebapi.com on registration, and posts trade-status updates with that token to a webhook URL the server supplies.

Steamwebapiv4.1.6Firefox Add-ons
2Risk
Who publishes it

Steamwebapi - no other listings under this identity

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

Publisher
Steamwebapi

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 4.1.6. 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 steamcommunity.com

    *://steamcommunity.com/*

  • Read and change your data on login.steampowered.com

    *://login.steampowered.com/*

  • Read and change your data on api.steampowered.com

    *://api.steampowered.com/*

  • Read and change your data on www.steamwebapi.com

    *://www.steamwebapi.com/*

  • Read and change your data on trafficlog.app

    *://trafficlog.app/*

  • Read and change your data on store.steampowered.com

    *://store.steampowered.com/*

  • Read and change cookies, including the ones that keep you signed in

    cookies

  • Store data in your browser

    storage

  • Show you desktop notifications

    notifications

  • Schedule its own background tasks

    alarms

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

Where it sends data

Destinations our analysis observed SteamAuth 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.

  • wss.steamauth.app

    SteamAuth sends data to wss.steamauth.app. No other extension we have analysed sends data here.

  • www.steamwebapi.com

    SteamAuth sends data to www.steamwebapi.com. No other extension we have analysed sends data here.

Updated 15 October 2026amo-2967872