Eno® from Capital One®

Name: Eno® from Capital One®
Rating: 3.0198 (708 reviews)
Author: Capital One

Shop more securely through your desktop browser with Eno®, your Capital One® assistant.

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Eno® from Capital One® is a browser extension designed to enhance your online shopping security. It generates unique virtual card numbers for each website, protecting your actual credit card details during checkout. This feature lets you shop confidently without exposing your real credit card number.

With Eno®, you can easily lock or unlock virtual card numbers anytime, preventing unwanted charges and giving you full control over your online spending. Even if you get a new credit card, your virtual card numbers remain active and automatically update behind the scenes. All purchases made using these virtual numbers link directly to your Capital One account, so you continue to earn rewards and benefits seamlessly.

To use Eno®, add the extension to Firefox (version 57 or later) and click the Eno icon at checkout. This tool is exclusively available to Capital One cardholders, enhancing both security and convenience in your online shopping experience.

Add-on Privacy & Security Financial Services Productivity Shopping

By:

Daily users:

Rating:

Version:

4.4.0 Last updated: 2024-04-10

Version code:

5715839

Creation date:

2018-02-23

Risk:

Permissions:

activeTab
tabs
storage
cookies
webRequest
webRequestBlocking
alarms
https://*.capitalone.com/*
http://*.capitalone.com/*

Size:

5.60M

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

# 460 ▲ 6

Other rankings

#16 in Shopping

#114 in Privacy & Security ▲ 3

#27 in benefit keyword 5 ▲ 1

#59 in shop keyword 52 ▲ 1

#61 in purchase keyword 17

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Other platforms

Eno® from Capital One® (v5.3.1)

600,000 4.56

(6,581)

Eno® from Capital One® (v5.3.1)

42,454 2.30

(101)

User reviews

Users appreciate Eno for Capital One because it helps protect credit card information by creating virtual cards with customizable expiration, enhancing online purchase security. However, multiple reviews mention it is buggy and inconsistent, often freezing or failing to load, requiring frequent sign-ins or browser restarts. Some users experience difficulties with mobile verification and compatibility issues on certain sites. While the extension works well on many sites and simplifies managing virtual cards, concerns remain due to lack of recent updates and occasional manual workarounds needed.

Pros

Helps protect credit card information by generating virtual cards tied to vendors
Allows creating virtual cards with specific expiration dates to manage subscriptions and limit vendor charges
Works well on many websites to enhance security during online purchases
Simplifies deleting or deactivating cards, reducing anxiety about exposing credit information

Cons

The extension is often buggy, freezing or failing to load or generate cards consistently
Requires frequent sign-ins to Capital One account and sometimes needs deleting cookies or restarting browser to function
Has not been updated recently, raising concerns about security and compatibility
Sometimes fails to recognize form fields or is rejected by certain websites, needing manual intervention

Recent reviews

by Fi*****, 2025-06-04

by Fi*****, 2025-05-27

This app is janky, and considering how much $$$ CapitalOne has at it's disposal, there no good excuse. It freezes up with every use. You need to keep signing into your Capital One account. And it doesn't auto-populate the newly created card into the online shop. You need to copy and paste it all manually from the CapitalOne website. It has not been updated for A WHOLE YEAR, so who knows if it's secure.

by Fi*****, 2025-05-27

View all user reviews ›

Extension safety

Risk impact

Eno® from Capital One® requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Eno® from Capital One® has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
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