Is XDM Browser Monitor v8+ safe?

Low risk

XDM Browser Monitor v8+ intercepts cookies and request headers from all browser traffic and forwards them to a local download manager app.

The extension attaches to all outgoing HTTP and HTTPS requests to capture headers including Cookie and Authorization values. When a URL matches a remotely-configured watchlist, it also forwards the tab URL and page title. Session cookies are additionally collected via chrome.cookies.getAll and sent to the local XDM app at 127.0.0.1:8597 over unencrypted HTTP, including during user-triggered download actions.

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

subhra74v3.4Firefox Add-ons
21Risk

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 3.4. 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

    *://*/*

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

    tabs

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

    cookies

  • Add items to the right-click menu

    contextMenus

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

    activeTab

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

menus

Where it sends data

Destinations our analysis observed XDM Browser Monitor v8+ 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.

  • 127.0.0.1:8597

    XDM Browser Monitor v8+ sends data to 127.0.0.1:8597. No other extension we have analyzed sends data here.

Updated 2 November 2026amo-2787505