<span style="color:#323232;">Lemmy uses the system default for monospace font.
</span><span style="color:#323232;">Try changing the monospace alias in /etc/fonts/local.conf:
</span><span style="color:#323232;">https://wiki.archlinux.org/title/Font_configuration/Examples#Default_fonts
</span><span style="color:#323232;">
</span><span style="color:#323232;">That's for system-wide effect.
</span><span style="color:#323232;">For just firefox, go to Settings > General > Fonts > Advanced and
</span><span style="color:#323232;"> change the default Monospace font to a monospace font you like.
</span><span style="color:#323232;">
</span><span style="color:#323232;">Source Code Pro and DejaVu Sans Mono are both very good.
</span>