Currently I'm using Sublime Text 3 build 3207 on Windows 7. I use the same version on Ubuntu and Fira Code font ligature is working fine. Have tried many things including this link and also have unanswered question in Sublime Text Forum since February 2019.
Below are my current settings:
{
"color_scheme": "Packages/Color Scheme - Default/Monokai.tmTheme",
"font_face": "Fira Code",
"font_options":
[
"gray_antialias"
],
"font_size": 8,
"ignored_packages":
[
"Vintage"
],
"theme": "Monokai Classic.sublime-theme"
}
Is there anything I missed here?