New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/35259#issuecomment-1023480615

Comment:
> Are there important drawbacks in doing this?

wayland/pipewire screen sharing and other things done through the xdg desktop portal would probably not work anymore.
The wifi geolocation stuff would break, MPRIS would break.

There are probably a lot more things I'm missing here.
https://searchfox.org/mozilla-central/search?q=dbus&path=

As far as I know, you can simply not use dbus and firefox still works, by either setting an empty dbus environment variable or a configuration option to not automatically spawn it.
Removing the package with the dbus binaries would probably work too.