A firebug torched 40 religious Hindu flags in the courtyard of a Queens home on Thanksgiving, police said Sunday.

The arsonist was caught on surveillance footage that was released by cops lighting the flags in front of the home at 89th Avenue and 80th Street in Woodhaven around 1:15 a.m. Thursday.

The man took off south on 80th St., cops said.

Police were investigating the crime as anti-religious criminal mischief, police sources said.