Is SteamLevelU Extension safe?

Low risk

SteamLevelU Extension writes its Chrome runtime ID into Steam Community page storage.

When Steam Community pages load, the extension's content script stores the fixed Chrome extension runtime ID under SLU_EX_ID in page localStorage. This makes the identifier available within the steamcommunity.com page storage context, with no confirmed external network recipient in the reviewed claim.

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

SteamLevelU.comv0.2Chrome Web Store
15Risk

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 0.2. 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/*

  • Store data in your browser

    storage

  • Run its own code inside the pages you visit

    scripting

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

    activeTab

Where it sends data

Destinations our analysis observed SteamLevelU Extension 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.

  • steamcommunity.com

    SteamLevelU Extension sends data to steamcommunity.com. 4 other extensions we have analysed send data here.

Updated 30 September 2026kbhpgleleakfcijediopmhddclffidbg