"(President Emmanuel) Macron is destroying France and your rights, don't criticise us" We're here for you," one placard read.
The protesters were expelled shortly afterwards by security staff. The store - one of the top destinations in Paris for moneyed foreign tourists, which was targeted by the demonstrators as a "consumerist temple" - said it would remain closed for the rest of the day.
The protest came on a second day of demonstrations to mark the anniversary of a leaderless revolt that badly rattled President Emmanuel Macron's centrist government.
Twenty people were arrested Sunday in Paris but in most places the protests were peaceful.
On Saturday, police in Paris had battled rioters for hours around the southeastern Place d'Italie square, where a yellow vest march was shut down by the authorities after turning violent.
Several cars were overturned or set alight, bus shelters were smashed and a monument to a World War II hero Marshal Alphonse Juin was defaced by demonstrators dressed in black, who wore masks to hide their faces.
Police checked thousands of demonstrators on Saturday and Sunday, and prosecutors said 155 were in detention including eight minors.
Castaner claimed that there were "few demonstrators" among at the protesters in Paris, who he said were mainly "thugs, brutes who came to fight the security forces and prevent the emergency services from doing their work".