It's not pointless to ask what long-standing behaviors are changed this time around. Mozilla has a history of making gratuitous UI changes that force existing u

It's not pointless to ask what long-standing behaviors are changed this time around. Mozilla has a history of making gratuitous UI changes that force existing users to re-learn something and have questionable benefits for new users. They also have a tendency to leave those changes (or at least the about:config workarounds) out of the release notes.