Is Mh25c Desk safe?

Low risk

Mh25c Desk relays messages from any web page to a local desktop app and opens tabs the page names.

A content script on all http and https pages listens for a custom page event and forwards its payload to the extension background. The background can open page-supplied URLs in new tabs and, on request, read a tab's HTML and send it, along with other messages, to a local WebSocket at localhost:3080. Replies come only from the local app, so pages cannot read results back.

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

Duchâteau Olivierv4.1Firefox Add-ons
20Risk

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. 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 every site you visit

    http://*/*

  • Read and change your data on every secure site you visit

    https://*/*

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

    cookies

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

    tabs

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

    activeTab

  • Show you desktop notifications

    notifications

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Sign you in with your Google account

    identity

  • See the email address of your Google account

    identity.email

windows

Where it sends data

Destinations our analysis observed Mh25c Desk 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.

  • localhost:3080 (local Caraibe desktop app)

    Mh25c Desk sends data to localhost:3080 (local Caraibe desktop app). Named as a recipient in this extension's own analysis.

Updated 15 October 2026amo-2768628