Release 142.0.1 Seems to have broke my Passkey?

[mjvincent]

I setup PassKey for usage for my workplace, it functioned properly up until 142.0.1 was released and I am wondering if there are any settings that I need to tweak to make it work again.  Firefox seems to freeze up too (but doesn't show non-responsive) and I have to force quit.  I am on Mac OS 15.6.1.  Any ideas?

[agraciani]

Same here, and in two different Macs one ARM and one Intel.
It's not fully unresponsive. I can interact with the menu and from the menu I can switch tabs even. But the main browser windows gets grayed out like waiting for a passkey window or an input or something and it doesn't allow you to click or type anything else. 
In order to not get into this frozen mode by mistake I have disabled `security.webauth.webauthn` (which also disables Yubi keys) 😞 
I will use a different browser for these MFA protected websites for now, wait to see if there is a fix, but also I'm considering rolling back to previous version if this doesn't get fixed in a week or so. 

[rbutleriii]

Still broken in 143.0.1. Fails for Google, Githhub, etc. The website issues some flavor of authentication failure message in the window before the passkey authentication pop-up even occurs. Creating a new passkey for the site does fix the problem.