Rated 3 out of 5 stars

โดย Firefox user 13db0b เมื่อ เม.ย. 26, 2018 · ลิงก์ถาวร

How is it supposed to be used? I have Firefox 52 ESR (not Quantum), which should be compatible, however I just see the plain text when opening .md files in (with) Firefox. What am I doing wrong?