I've failed to launch the application properly under X.org and
Wayland using the
launcher icon in GNOME shell.
But when I switched to Wayland, I executed the `firefox` command from
"Terminix"
and it worked under XWayland with no regressions so far (I didn't notice any other
than links from other apps can't be opened as it tries to open new instance of
Firefox).
Having this issue as well. It crashes under wayland when launched from .desktop file for
some reason, but not if started directly with "firefox" from gnome-terminal.