How to use Facebook fonts
Generate a style, copy it, and be deliberate about where it goes, because Facebook treats fields very differently. Feed posts, comments, and the short profile Intro (around 101 characters) accept pasted Unicode and keep it, so a styled hook on a post or a single decorated line in your Intro works well. The Name field is the trap: Facebook enforces a real-name policy and actively strips or rejects characters it judges non-name, so a stylised name often reverts or flags the account. Pages have a little more latitude than personal profiles, but the safe rule is the same — decorate the message, never the legal name. Paste into the post composer or the Intro under About, save, and it shows for everyone with nothing to install on their side.