Comment 5 for bug 2062148

This is with Firefox 125.0 installed via Snap on Kubuntu Linux 23.10 with Kernel 6.5.0.

I'm using my YubiKey Neo as second factor via U2F for my accounts at Heroku, Google, GitHub, TYPO3 and Bitwaren. This is the device description my system logs when I insert my YubiKey:

Yubico YubiKey OTP+FIDO+CCID

A few days ago (possibly after a Firefox update, but I'm not completely sure, as I do all updates in a timely manner), using the YubiKey U2F for 2FA stopped working reliably anymore in Firefox: Most of the times, the website does not register when I touch the pad on the YubiKey, and sometimes it still does.

My private GPG key on the key is still working fine, and U2F on Chrome also continues to work reliably.

We have the same problem on a different computer (also Kubuntu 23.10, also on Firefox) with a different YubiKey on different accounts.