Mark Zuckerberg met Emmanuel Macron as part of his efforts to restore Facebook's reputation in the wake of revelations about breaches of users' data and anger at its tax policy.
The French President welcomed the Facebook CEO the Elysee Palace with a warm smile for a summit along with the bosses of other technology giants.
Macron's guest-list included also included IBM's Virginia Rometty, Intel Corp's Brian Krzanich, Microsoft Corp's Satya Nadella and a raft of other big hitters in the corporate world.
French President Emmanuel Macron with Mark Zuckerberg and IMB's President and CEO Virginia Rometty on his leftiPhone transfer software
Zuckerberg appeared relaxed after what promised to be tough questioning in the European Parliament descended into farce
Zuckerberg's appearance alongside the Macron comes after what was meant to be tough questioning by the European Parliament descended into farce when MEPs asked long winded questions in a format chosen by the Facebook boss.
The French leader paints himself as a champion of France's plugged-in youth and wants to transform France into a 'startup nation' that draws higher investments into technology and artificial intelligence.
He is also spearheading efforts in Europe to have digital companies pay more tax at source.
'There is no free lunch,' he quipped in English to the executives lined up on the steps of the Elysee Palace for a photo call at a lunch meeting adding: 'So I want from you some commitments.'
The two men will discuss the platform's efforts to deal with terrorist recruiters, fake news, election meddling and hate speech, an aide to the French president said ahead of