If you upgrade in f33 or rawhide to nss 3.59, all your firefox add-ons
will stop working. Worse they will appear corrupted, so you will have to
remove them and re-install them (after downgrading nss).
For now, downgrade nss or avoid updating to it until things can get
sorted out.
https://bugzilla.redhat.com/show_bug.cgi?id=1908018
kevin