I don’t think so. With only freedom of speech, the government could still ban access to all foreign-country-hosted read-only sites – sites without commenting or other interactivity. That would include many informational sites and blogs.
In practice, no, because UN resolutions are only as good as their ability to enforce them, which in the case of general-assembly resolutions basically boils down to no ability, except attempting to shame people who flaunt them. Only a handful of UN organs (e.g. the Security Council and the International Criminal Court) have anything approaching teeth.
