The double Olympic champion was back to his form of 2012 with an impressive win in the 10,000m in Zurich, just ahead of Team GB team-mate Andy Vernon.
One of the first tweets came from Teddington Cricket Club, where Vernon was once a barman, and which claimed a 1-2 for Teddington as Farah used to live there too.
Elsewhere, Matt Wilkinson producer of TV shows like a League of Our Own and X Factor, tweeted Well done Mo Farah - great to see you back on the track doing what you do best , while sports reporter Jon Durham tweeted There is something very loveable about Mo Farah what a tremendous athlete he is.
Marathon legend Paula Radcliffe saluted a magnificent night for Team GB, tweeting Well done all the GB athletes tonight. What a great night! , while sports clothing company Team Stickman tweeted BOOOOOMMMM!!!!!! WIN FOR Mo Farah #mobot time!!!
Farah, who indeed celebrated with his trademark Mobot, told the BBC: "This means a lot to me, it hasn't been easy, but it does mean a lot."
Following his double Olympic gold in 2012, Farah had postboxes painted gold in his honour in both Feltham and Teddington.
He also paid a visit afterwards to his first school, Feltham Community College, where he even caught up with a read of his favourite local paper, the Hounslow Chronicle.