[Plugin: DKOATED CTA Buttons] button corners are square on firefox

Thanks for the plugin. “Normal” style button corners are showing up square on firefox 14.0.1, rounded on chrome. You can see this happening here. Is this the intended behavior? I prefer rounded corners on firefox. I’m using plugin version 1.5.0.

http://wordpress.org/extend/plugins/dkoated-cta-buttons/