The demonstrations started on 16 March in central Paris and elsewhere in the country, causing police presence to increase.
The UK Foreign Office advised the protests could turn violent and/or continue, and could lead to disruptions to road travel.
Several unions also called for rolling cross-sector strike action from 7 March, with coordinated cross-sector action planned on 23 March.
Industrial action may start the evening before the strike day and run for several days, but localised or sector-specific strikes could occur outside these dates. Industrialised action may lead to disruption to services.