Mercurial flyhalf Romain Ntamack scored 17 points as France put in a stout defensive effort to claim a 27-23 Six nations victory over Wales to keep alive their Grand Slam hopes on Saturday.
Fullback Anthony Bouthier, lock Paul Willemse and Ntamack all scored tries as France made a bright start but then had to defend for much of the second half before earning a third successive victory in competition and a first win against Wales in Cardiff in a decade.
Prop Dillon Lewis and flyhalf Dan Biggar scored tries for the home side but they lacked a clinical touch and came second best in the physical contest.
The match was especially satisfying for former Wales defence coach Edwards, now performing the same role with France.
His side now face Scotland in Edinburgh on March 8, while Wales are at Twickenham a day earlier to meet England, with their chances of retaining their Six Nations title all but over.