Firefox 68.0 was the last version to support Cairo font rendering as far as I'm concerned (pardon me if I'm not using the right technical names/terms and so on), and it looked so smooth and gorgeous. I have bad eye sight, and Cairo was the best and most pleasing for my poor vision. I just cannot understand why it was removed in the first place?
Right now I'm forced to sit on such an old version (no security patches!). Would it be technically difficult to bring Cairo back? DirectWrite just doesn't cut it.