An icon only button inside an inputgroup look compressed with Firefox
"primeng": "^6.1.2"
Firefox 61.0.2
or

The same problem to me.
My config:
Used template: paradise-ng-6.0.0
Hello.
The commit https://github.com/primefaces/primeng/commit/541ee5c leads to problems when the nova-theme is NOT used:
The same layout problem in firefox (as described above) is the consequence of the now missing "width: 2em;".
Was the change in src/app/components/button/button.css needed?
Regards,
Martin
@cagataycivici can you please check this when you've got time ? Thank you