In all probability, this result will have cost caretaker Paul Hegarty the permanent management position.
Having watched his team hit the frame three times and throw away a two-goal lead, Heggie will have realised luck is not on his side at this time.
As expected, the game began in a nervous fashion with both teams keen to avoid any mistakes although the Terrors did have the greater share of possession.
With the match being played in an eerie silence and the fans looking forward to their half-time Bovril, a tremendous run by Steven Thompson finally warmed them up.
Collecting Derek Lilley's pass in his own half, the Scotland international dribbled more than 40 yards before pin-pointing his pass for Lilley to hook a low left-foot shoot into the corner of the net from 12 yards.
The second half began with United upping a gear.
Stephen O'Donnell went close in the 58th minute slamming the post with a thunderous left-foot shot but the relief for the visitors was shortlived as Jim McIntyre doubled the lead one minute later.
Charlie Miller's throw was flicked on by Thompson and with Philippe Brinquin hesitating, the midfielder fired home from four yards.
The Tangerines looked comfortable but their lead was halved nine minutes later. Barry Wilson's corner was missed by the United defence giving Eugene Dadi the chance to head the ball into the path of Gary Bollan.
The ex-United man wasted no time in rifling the ball into the back of the net from 12 yards.
Against the run of play, Livvie then equalised in the 75th minute after a superb run by Wilson.
Emulating Thompson's run, he opened up the United defence with a one-two with Dadi before hitting the ball under the diving Paul Gallacher from 16 yards.
Amazingly and undeservedly the visitors won the game three minutes later. A David Bingham cross was missed by Gallacher and the static United defence for Dadi to easily knock the ball in at the far post