This is a useful service from Capital One, however sometimes it shows up and sometimes it doesn't. Limiting its usefulness.

The setup wouldn't even let me get pass the login screen

Eno could be so much better, like the Citibank version. It should let you set a credit limit and an expiration date to give you much better security functions. With long expiration dates, the potential for abuse is much greater.

I works really well for me. The unique card number for each site is a great security layer. Awesome!

This extension has been adding more and more RUM telemetry components, which access more and more random URLs behind the scenes, and the actual functionality of the app has been declining constantly. Every time I try to use the extension lately, I get the "Checking Session" message and it just constantly spins. And accessing the virtual card list from the website is such a pain that at this point they're useless.