Browne's language was colourful, and an unauthorized biography of her, "This Effing Lady", was published. She was a devout Catholic (by conversion). The two aspects came together in a story of her standing outside Brompton Oratory after Sunday mass when an actor came up to her with gossip about who was sleeping with someone else's wife. She stopped him in his tracks with: "I don't want to hear this filth. Not with me standing here in a state of fucking grace."