Vowing to “break taboos,” deregulate the economy and fight to the last against the extreme right, President Emmanuel Macron presented his vision of a stronger, more just France during a televised news conference that lasted deep into the Parisian night on Tuesday.

“We will put an end to useless norms,” Mr. Macron said in an appearance before more than 100 journalists, promising to favor those who “innovate and create,” cut red tape, facilitate hiring and encourage the unemployed to take up job offers. His goal, he added, was “a France of good sense rather than a France of hassles.”

The president noted that he had defeated Marine Le Pen, the far-right leader and perennial presidential candidate, in 2022 and 2017, and “I will do everything to stop her again.” He described her National Rally party’s program as incoherent and a guarantee of a weaker France.

“Until the last 15 minutes of my presidency, I will fight,” he said.

In a France already troubled by pro-market changes pushed through in Mr. Macron’s first term, which brought unemployment to its lowest level in many years, his promise of renewed deregulation was certain to meet resistance from the many French people attached to a high degree of state-financed social protection.

“We have had too many taboos,” Mr. Macron said. One of the strongest in France surrounds any suggestion that too many entitlements may lead to diminished competitiveness.

Mr. Macron’s decision to address the nation, in the week after he named a new government led by the youngest prime minister in the history of the Fifth Republic, was a response to the sense of drift that has characterized his second presidential term.