IntelliJ products instructions

This should work for Fira Code 1.102 and IntelliJ products v. 15 and later (IDEA, PhpStorm, PyCharm, RubyMine, WebStorm, AppCode, CLion, DataGrip):

• Create idea.properties file (see how and where)
• Add this:

editor.enable.optional.ligatures=true

• Restart your IDE

NOTE: There’s an issue on OS X when Fira Code Light is used instead of Regular weigth by default (discussion). To work around that, do not install Light weight at all.