The Welshman's original four-year deal was scheduled to end in December but, with the 2020 Olympics delayed by 12 months because of Covid-19, the FRU has extended his deal until the end of the global sporting showpiece in August next year, where Fiji will defend their gold medal from four years ago.
While the 2019/20 World Sevens Series was brought to a premature end last week, Gareth Baber intends to keep his players busy with provincial and local sevens competitions.
"We've put some plans in place based around what is happening here domestically in Fiji," he said.