My capital one card has virtual cards, and I’ve seen it other places. The only issue is that it’s done by a browser add on that has incredibly high permissions.

My capital one card has virtual cards, and I’ve seen it other places. The only issue is that it’s done by a browser add on that has incredibly high permissions. I handle it by using a separate Firefox profile for the rare occasions I need to use them. I start Firefox with that profile, use it, then go back into my normal profile.