After months of pressure, Facebook has announced that it will allow the Child Exploitation and Online Protection Centre (CEOP) to create a 'panic button' app for the platform.
Called ClickCEOP, the app will provide Facebook members with a link to the CEOP website where youngsters can report online abuse.
From Tuesday, UK-based Facebook users aged between 13 and 18 will see an advert on their homepage encouraging them to install the app.
CEOP chief executive Jim Gamble said: "Our dialogue with Facebook about adopting the Click CEOP button is well documented – today, however, is a good day for child protection"
"We know from speaking to offenders that a visible deterrent could protect young people online," Gamble continued. "We urge all Facebook users to add the app and bookmark it so that others can see that they’re in control online."
The advert will also be backed by the CEOP Facebook page, which offers online advice to members by linking popular topics discussed by teenagers to questions about online saftey.
Facebook Vice President for Europe, the Middle East and Africa Joanna Shields said: "There is no single silver bullet to making the Internet safer, but by joining forces with CEOP we have developed a comprehensive solution which marries our expertise in technology with CEOP’s expertise in online safety"
"Together we have developed a new way of helping young people stay safe online and backed this with an awareness campaign to publicise it to young users," she added.