I enabled MFA on my Google account because I wanted to protect it. Every time I logged-in, Google tried to get me to "Don't ask again on this device", and I un-checked the checkbox every single time (grumble).
Except once.
Now I do not get any more MFA challenges when logging-in from this computer.
How can I reset that setting so it asks me for my MFA credentials again each time I log in?
I tried on another browser and I got the challenge. Is this a browser-cookie that I can delete to re-enable it?