Is Eno® from Capital One® safe?

Clean risk

Eno from Capital One scans page structure on all sites and sends URL, referrer, and session identifiers to Capital One analytics.

The extension runs content scripts on all HTTP and HTTPS pages. On pages where payment-related form elements are detected, it collects the page title, body text, and form field data, then transmits the current URL, referrer, and the user's profileReferenceId to Capital One's Snowplow analytics endpoint. A window.postMessage handler in the content script accepts tracking messages from any web origin and forwards them — along with the user's stored profileReferenceId — to the same analytics endpoint without validating the message origin.

Capital Onev6.0.0Firefox Add-ons
3Risk
Who publishes it

Capital One - no other listings under this identity, 7 shared hostnames

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

Shared hosts - 7 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

api.capitalone.com
Also called by 1 other listing: Eno® from Capital One®
ecm.capitalone.com
Also called by 1 other listing: Eno® from Capital One®
login1.capitalone.com
Also called by 1 other listing: Eno® from Capital One®
wib.capitalone.com
Also called by 1 other listing: Eno® from Capital One®
links.capitalone.com
Also called by 2 other listings, including Peer: Verify Payments Securely
verified.capitalone.com
Also called by 2 other listings
myaccounts.capitalone.com
Also called by 5 other listings, including Peer: Verify Payments Securely, WealthStack

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 6.0.0. 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 secure site you visit

    https://*/*

  • Read and change your data on every site you visit

    http://*/*

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

    activeTab

  • Schedule its own background tasks

    alarms

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

    tabs

  • Store data in your browser

    storage

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

    cookies

Where it sends data

Destinations our analysis observed Eno® from Capital One® 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.

  • potomac-clickstream.capitalone.com

    Eno® from Capital One® sends data to potomac-clickstream.capitalone.com. No other extension we have analyzed sends data here.

Updated 2 November 2026amo-941474