I have a font with some ligature errors in it. This is causing problems in my Android application. I want to just remove the ligatures. How do I do that in FontForge?
This question is related but it is going the other way.
This is a self answer question. My answer is below.
In FontForge go to Element > Font Info > Lookups > GSUB. You should be able to select a ligature table there. Then you can click Delete to delete all the ligatures or Edit Data to choose which ligatures to delete.
After pressing Edit Data you can select specific ligatures. Click Delete to remove them.
来源：https://stackoverflow.com/questions/43315957/how-to-remove-ligatures-from-a-font-using-fontforge