When comparing Fira Mono vs Operator Mono, the Slant community recommends Operator Mono for most people. In the question“What are the best programming fonts?” Operator Mono is ranked 39th while Fira Mono is ranked 51st. The most important reason people chose Operator Mono is:
Operator can be used to mix the same font for syntax formatting.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Looks great and is easy on eyes
Almost looks like Source Code pro and works great with Intelli J where Source Code Pro renders all junk on one of the primary IDE.
Very good for people who read code through out the day.
Pro Extremely readable
You can look at the code for hours and hours. The height between lines and the spacing is perfect.
Pro Offers better performance in some Emacs builds
This font is used by some Emacs users on Mac OS X in order to get better performance.
Pro Has a script version
Operator can be used to mix the same font for syntax formatting.
Pro Super readable
Long strings can be read in Operator exceedingly easily. The font just flows nicely, with all the benefits of clarity that provides.
Pro Horizontal width not as wide as other fixed width fonts
You can legibly read everything and get more characters per line.
Pro Adorable italics
Cons
Con Large line height
Compared to other options, Fira has a high line height, which reduces the number of lines you can see on screen at one time.
Con Relatively expensive
At $179, this font is on the more expensive side.