> It's probably a good idea to keep up with updated packages in general -- > while the RPM dependencies are supposed to catch situations like this, > sometimes there are problems which aren't caught because the expected > situation is an updated-across-the-board system. Whilst I agree, surely though this should also be flagged as a bug ? The new firefox should have its dependency on nss updated (or added). I think there are perfectly valid reasons why someone might try "yum update firefox" and then get into a mess. Chris