Friberg served in the Estonian Armed Forces during the 1940 occupation and was automatically considered a member of the Soviet Armed Forces, where he fought in Courland. In 1941, he was wounded, returning home in 1946. He then built boats for a couple of years and tried to fish to no avail. After that, Friberg lived in Norrby.
In 2014, he was congratulated on his 95th birthday.