Unfortunately, there's a bug with Facebook that prevents responsive comments from working now. We did support that feature using a specific method up until March of this year. After the bug happened in their Javascript library, there's no way to re-implement the responsive comments. We're waiting for a fix from them, as well as many of other websites. You can follow the bug below, and we'd recommend clicking the "Subscribe" button in the top right to vote for the issue as well as follow any updates on it:
developers.facebook.com/x/bugs/256568534516879/
I hope that helps explain,
Alex
Facebook Commentbox is not responsiv How to do?
