I run Firefox on Linux Ubuntu and I just down loaded the latest version and I can't seem to update the old browser to the new one. How can I do this?

"''sudo apt-get update firefox''" in Terminal ('''Applications''' -> '''Accessories''' -> '''Terminal''') should do that. Instead of manual updates, Linux Debian-based systems have "repositories" and '''apt-get''' which updates both the kernel and all programs for you automatically. See here: https://help.ubuntu.com/community/AptGet/Howto Please let us know whether that works.