Spent the 30 minutes to do the 15 convoluted steps to set this all up, and of course it doesn't work. BofA had a much nicer setup, that didn't need a lame plugin. I would not be suprised if they are sniffing all your web browsing with this either. zero stars

The number did not work when I tried it. I deleted the number thinking I could recreate it. NOT.

This used to work fine for me and as many reviews have said, now it is just an endless authentication loop.

It used to work, now it doesn't. Tired of searching for solutions, so now I switch to Chrome to pay for items, followed by an immediate virus scan that always shows multiple PUPs. Tedious, but it is important to protect my credit card information.

I LOVED this add on until it stopped working. I used it exclusively and then it just stopped working on my Firefox browser. Like everyone else, it is just an endless loop and I can't get logged in anymore. I Do NOT use Chrome. Please fix this issue.

Still doesn't work correctly. It works once or twice, then nothing. If I remove it and re-add it, it will work a few times then stop again.

This will not work on Firefox. Once I try to verify using my CapitalOne app, the extension hangs or sends me on a never-ending loop of trying to verify. I do not use Google Chrome as a browser.

Eno might actually be great, but I can't find it. Doesn't show up on my browser. Is this a joke? Keep getting notifications about using this add on, but no matter how many times I download it, it's never there!! Stupid!!

Eno was working just fine in my Firefox browser since installing it a couple years ago, then recently it began to consistently malfunction. Since about May 2020, clicking the Eno icon brings up a "clueless Eno" that can't determine it's already been installed--despite the 20 or so preexisting virtual card numbers on file (which couldn't have been created without Eno being installed.) Stoopid Eno!

During the 1 hour, 50 minutes, and 53 seconds spent on the phone with Capital One Customer Service, the truth came out. The June 5th, 2020 implementation of the current Eno version was tailored to work just on ONE of today's top 5 web browsers--NOT Mozilla Firefox, NOT Apple Safari, NOT Microsoft Edge, and NOT Opera. Eno now works properly on ONLY one web browser, Google Chrome.

Once again, Capital One, thanks for less than nothing!

Ever since the 3.5.1 update, the addon has been lagging webpages for me. It's basically unusable now until this is fixed.

this requires access to data for all websites and access to all tabs before installing it -- ridiculous and totally insecure, there's absolutely no need for them to be so intrusive just to generate a virtual number -- I did not install it

Can't login to use the app.

App is worthless. Try to log in, there always "A problem." It's been like this since launch and I don't know why they don't care to fix it. Even the link to "Manage Eno" on their website is a deadend. Don't know why a HUGE company like CapitalOne can't deploy and effective virtual numbers app when another bank I had many years ago had a terrific web-based system. This bank is idiotic for not fixing this longstanding issue if not for the sake of their customers, then at least to help minimize fraud (when permanent card numbers are compromised).

Shame on you, CapitalOne.

This is worthless. I have never got it to work with Firefox.

Used to love this extension until it stopped working a few months ago.

Now, every time I try to log in, it says "Restart your browser". I have tried fully shutting down and restarting my browser as well as fully restarting my computer, it just doesn't work.

Please fix!!

Verification does not work. Everytime pops up to remind me to use but the problem is the verification does nor work. I don't see an option to enter the CVV to verify at all

My small business card encouraged me to use this extension however it doesn't work with small business cards. It only shows my personal cards. That makes it nearly useless to me since most of my purchases are business purchases.

Errors out saying something went wrong.... I heard it works just fine on chrome but I will NOT use chrome just for this extension... You need to fix this to work right for Firefox like it did when I first got it.

This addon doesn't work. Not on FIrefox, Not on Chrome, Not on the dark, Not on a train. You try to log in and it just gives a generic error. Waste of time.

They shouldn't force you to use a browser extension for something that you should be able to easily do on the site or app, like making virtual credit card numbers. Maybe I missed another way to do it, but it seemed to force me to this extension. The extension worked ok when I tried it, but required me to go all the way to checkout on the site. If I'm not trusting a site with my credit card info, I definitely don't want to be signed into my capital one account on an extension while visiting that site. Please let us make virtual numbers without this (or apologies if it is possible, I could not figure out how to).

I would love to use the Eno feature, but every time I try, it gets as far as where I am supposed to enter my CCV # and then it quits. There is no place to enter the number, and so it becomes a huge frustration and I just have to give up and use my actual number. A real bummer.

This extension doesn't do anything. It does not allow me to go to the Capital One ENO page. Instead, it just sends me to my Firefox extensions page.

update 8/2023
broken again, still works in Chrome

update 2/2022 I've been using eno on FF ESR, but Mozilla ended support for the version of ESR I'm running, so I tried to install eno on the current release version of FF. As others have reported, it's completely broken, even with a capital one tab open with Adblock disabled. I don't understand why the 5-star Chrome version works perfectly and the FF version periodically fails completely.

I thought I was the only one having problems with signing in until I read all the other one-star reviews. The extension worked perfectly at first. Then I had to make an out-of-town trip and I made some changes in my contact info, but I never deleted my primary SMS phone. Now neither the extension nor online banking will recognize any of my contact numbers as legit and both online banking and eno completely lock me out after a couple tries at texting to a number that has been on file unchanged for a week. Tech support told me a) wait for the numbers to propogate through the system (they never did) and b) to uninstall and reinstall the extension, which made things even worse because uninstalling wiped out all the user data stored in my Firefox profile and since the extension doesn't recognize my contact phone, it became useless. I restored my Firefox profile from a backup to regain partial access to eno functionality but as I am locked out of the system, I have to wait 24 hours to see if I can get the extension working in Chrome. Tech support claims that the problem is that I'm using my spouse's phone (same billing address, different name), but after reading all the one-star reviews with the same issue, I'm thinking they don't actually know what the problem is.

When it works, it's great. Unfortunately it consistently breaks and can't log in. Get the something went wrong error. Works fine in my installed chrome based browsers.

Couldn't make it past the first step. Hit "agree" and then nothing- just stuck on "continuing" forever. Uninstalled 5m later.