On Tuesday the site said it was to test new tools that allowed people to share any special circumstances they felt meant they could not use their real name.
The
tool is intended to help people who may have suffered domestic abuse,
or in cases where their sexuality could put them in danger.
However, Facebook stood firm on insisting people use "real names" in all but the most unusual situations.
"We require people to use the name their friends and family know them by," the company said.
