Is SN Utils safe?

Low risk

SN Utils accepts localhost WebSocket commands that can open tabs and run ServiceNow automation without authenticating the sender.

SN Utils connects its ScriptSync page to a local WebSocket helper at 127.0.0.1:1978 and dispatches JSON commands received there. Those commands can activate or navigate browser tabs, run slash commands, call ServiceNow APIs, change page fields, take screenshots, upload attachments, and run background scripts without the extension authenticating the localhost peer first.

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

Arnoud Kooiv10.1.5.5Firefox Add-ons
17Risk

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 10.1.5.5. 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 service-now.com

    https://*.service-now.com/*

  • Read and change your data on servicenowservices.com

    https://*.servicenowservices.com/*

  • Read and change your data on snutils.com

    https://snutils.com/*

  • 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

  • Add items to the right-click menu

    contextMenus

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

    cookies

contextualIdentities

Where it sends data

Destinations our analysis observed SN Utils 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.

  • 127.0.0.1:1978

    SN Utils sends data to 127.0.0.1:1978. No other extension we have analysed sends data here.

Updated 30 September 2026amo-1009097