A total of six police were injured in the clash.
Candidates are being reminded that jobs are a top concern for voters - less than a week before the presidential election.
RIOTING broke out during Paris May Day marches yesterday as presidential rivals spoke at rallies in a bid to capture the working-class vote.
The police arrested five persons following the incident.
"Not one or the other; instead it's the people's self- defense" read one sign.
That show of force, coupled with a political closing of ranks, helped the centre-right's Jacques Chirac inflict a crushing defeat on Le Pen senior.
Maud Le Rest reported from Paris.
Opening the Villepinte rally, he accused the "immature and agitated" Mr Macron of wishing to "definitively shut the French inside the prison of the EU".
Accusing Ms Le Pen of exploiting the anger of voters, centrist Mr Macron criticised what he called her rude manners and labelled her "the heir" to her father's politics.
"She is not Joan of Arc", the 88-year-old politician said, "but she accepts the same mission ..."
Ms Le Pen added to Mr Fillon's comment that this showed France is more than a military and industrial power, that France "must and can" become a big power again.
He denounced Macron as a "masked Socialist" backed by the highly unpopular Socialist President Francois Hollande.
Macron, a former economy minister, is campaigning on strong pro-European, pro-free market, liberal views.
Hit by NASCAR penalty, Logano says team doesn't cheat
Although Logano will still be able to keep the win, he will not be able to use it to secure an automatic spot in the playoffs. The exact rule broken dealt with modifying parts that enhanced the driver's ability to move through the corners of the track.
The far-right National Front's (FN) Marine Le Pen will face neoliberal Emmanuel Macron under his En Marche! The senior Le Pen has often been decried as a racist; his daughter ejected him from the party in 2015 as part of her bid to make the National Front more politically acceptable.
Macron and Le Pen, who will face each other in the runoff on May 7, are increasingly on the attack.
Macron's economic liberalism worries many voters on the left.
Police fire tear gas to attempt to control the protesters in Paris.
She also claimed that his pro-business policies would not create jobs but send them overseas and leave French workers hungry.
Liberation said it would publish a 16-page anti National Front (FN) special edition on Tuesday. The death drew national outrage.
French independent presidential hopeful Emmanuel Macron said on Tuesday that he had two candidates in mind for the position of the country's prime minister.
Standing on the same bridge, Macron hugged Bourram's son Said, who was nine years old when his father was killed.
With the populist candidates from the far right and far left garnering more that 40 percent of the vote in the first round of the election on April 23, luring them is a key piece of any winning strategy for Macron. "That is why I am fighting, to say "No" to racism".
"Then there is the Rhine frontier, the most open, the most unsafe, also the most promising - a Germanic world we have been so often in conflict with and with which we will yet co-operate in so many ways", said Fillon last month.
Reacting to the scenes, far-right presidential candidate Le Pen tweeted: "This is the sort of mess. that I no longer want to see on our streets".
"I will fight up until the very last second not only against her programme but also her idea of what constitutes democracy and the French Republic", said Macron.