Lemmy uses the system default for monospace font.
Try changing the monospace alias in /etc/fonts/local.conf:
https://wiki.archlinux.org/title/Font_configuration/Examples#Default_fonts
That's for system-wide effect.
For just firefox, go to Settings > General > Fonts > Advanced and
change the default Monospace fonttoa monospace font you like.
Source Code Pro and DejaVu Sans Mono are both very good.
Lemmy uses the system default for monospace font. Try changing the monospace alias in /etc/fonts/local.conf: https://wiki.archlinux.org/title/Font_configuration/Examples#Default_fonts That's for system-wide effect. For just firefox, go to Settings > General > Fonts > Advanced and change the default Monospace font to a monospace font you like. Source Code Pro and DejaVu Sans Mono are both very good.