That is strange. Did you try any of these? https://help.ubuntu.com/community/AutomaticSecurityUpdates https://help.ubuntu.com/community/AutomaticSecurityUpdate

That is strange. Did you try any of these? https://help.ubuntu.com/community/AutomaticSecurityUpdates https://help.ubuntu.com/community/AutomaticSecurityUpdates I am not sure about major release upgrades. But if you are on an LTS release, this should cover it for five years. And as much as I dislike snaps, they do auto updates too, so in 22.04 Firefox at least keeps up-to-date too.