Some 370,000 people marched in Paris on Tuesday of last week on a day of strikes against plans to make workers pay billions more for their pensions.
The Labour-type Socialist Party government wants to increase the time someone must work to get a full state pension from 40.5 to 43 years. Its proposals will be debated in parliament next month.
Latest polls show that a majority of people support the strikes. But the CFDT union has committed to talks with the government instead of calling for industrial action.