I can live without many of those bad websites (or rather "webapps"). But what's annoying me right now is that it happens more and more that passkeys work with

I can live without many of those bad websites (or rather "webapps"). But what's annoying me right now is that it happens more and more that passkeys work with Chromium but not Firefox. And I want passkeys (well, I want to log in with my Yubikeys).