Completely broken.

This app is totally disconnected to Capital One. I tried to access my virtual card as I had a need to use it, and it is a new Quick Silver credit card. It declined me access. Accordingly it will only work with Venture, QS and business cards. What do you of the card that I just had? Dumb app.

If you use Firefox don't waste your time

Does not work with Firefox. Says it will check the session, goes through a log in loop repeatedly but never logs in.

I like Capital One and their virtual card feature in general, but it would be great if we could actually use it outside of this nonfunctional extension. Even before it stopped working, it was annoying to only be able to generate a number by having it installed.

Same exasperating problems as others have had with this app. With so many complaints, does anyone at Capital One even bother to read the reviews, much less consider doing something about the issues?

Doesn't work with Firefox. Endless login loop.

It's broken as others have said. When I click sign in the sign in window closes instantly

This addon is a good idea, but it does not consistently work...

The current iteration of the app it is impossible to login.

You click the window to login, then the window opens to login, then that window immediately closes and the little drop down refreshes... and it still shows the button to login...

And this isn't the only bug, I've had similar bugs in the past, but then they fix them, Sometimes these bugs are fixed by turning privacy features off, but I've gone through the I can't login... oh I can!... I can't login... I can login, but autofill doesn't work. loop several times now.

It's very frustrating.

The service itself (time-limited credit card numbers) is a good idea, but this addon is terrible. Capital One Does not seem to want to allow the app to work in the presence of other apps or with non-default configurations for privacty settings... and that's not OK.

this is not working on firefox. the popup window closes automatically upon opening

Most times I try to use it, it says "Securely signing you in with express checkout..." and never gets any further.

Stopped working a couple of months ago. Pops up saying "Checking Session" and then says you need to log in. After clicking to "Log in with browser" a window opens, then shrinks, and disappears. DOES NOT WORK

Exasperating!! just got an error message saying "Your ebay purchase was declined because you used a virtual card number you created for ebay... Use a virtual card number created for ebay to retry this purchase." ABSURD!!! it fails more often than it works, I give up. I'm taking it off my extensions.

As many other users mentioned, this stopped working the last time Capital One put out a new version about a month ago.
For me, when I click on the Eno logo and "Checking Session" appears, if I need to sign in a new window pops up for the login but then immediately shrinks and closes with out giving me the opportunity to put in my credentials. I was able to make it work again for 2 uses by uninstalling and reinstalling the add-on. Also, the work arounds others mention, go sign into C.Ones website, then open a new tab (or three) on the same retailer allow me to struggle through.
Honestly, I may drop Capital One if this isn't fixed, there are competitors with apps that work.

PLEASE MAKE IT WORK WITH FIREFOX!

The app used to work fine. However, as of 10/25/21 it just pops open a window showing my existing virtual cards but doesn't allow me to create a new one.

virtual card will not add new maechants

Used to work, now broken as other reviewers have noted.

I have had the same problem so well described by other reviewers for about a month. It used to be a great add-on! "This addon has effectively been nothing more than a way to log in to the Virtual Cards page of the Capital One site for MANY versions now. It does not create new Virtual Cards and does not allow you to lock or unlock existing Virtual Cards. This is all but useless for anything other than getting you to the Capital One page that allows you to see your existing Virtual Cards. This addon has been the one and only way to create new Virtual Cards since their inception (you can't do that on the website), but now even this addon doesn't do that." When Eno stopped working a year or so ago, Capital One blamed Mozilla and I am sure Mozilla blamed Capital One. I wish they could work together to fix the current issue.
I tried the solution mentioned by Crix, but it didn't work. Not sure what adblock is or how to disable it.

This addon has effectively been nothing more than a way to log in to the Virtual Cards page of the Capital One site for MANY versions now. It does not create new Virtual Cards and does not allow you to lock or unlock existing Virtual Cards. This is all but useless for anything other than getting you to the Capital One page that allows you to see your existing Virtual Cards. This addon has been the one and only way to create new Virtual Cards since their inception (you can't do that on the website), but now even this addon doesn't do that.

Does not work with Firefox. It used to be wonderful before it was changed. Will use another credit card now for virtual card numbers. Capital One was better than Citi Bank for virtual card numbers but I will go back to Citi Bank now if compatible with Firefox.

Sort of worked, then doesn't, won't autofill, very frusterating. If it worked it would be great. It doesn't.

This add on doesn't work anymore. Many months ago it stopped remembering your login details.

Now in the last month or so, the popup login window doesn't even log you into the eno window. It just opens your virtual cards. If you want to create a new virtual card, you can't. Whatever they did to change it, they ruined it.

This WAS one of the most useful add-ons I have in Firefox. However, currently it is utterly broken. When you attempt to log in, rather than launching the app to generate or use a virtual card, the login takes you to the card management webpage, while the app waits for the login.