AFAIK Firefox does not "go out of their way to draw controls that don't fit in". On Mac and other platforms, the policy is that the controls look and feel like

AFAIK Firefox does not "go out of their way to draw controls that don't fit in". On Mac and other platforms, the policy is that the controls look and feel like their native counterparts (unless overidden by Web authors) ... unless it's changed since I left Mozilla, and I don't think it has. In some cases, however, that has not been achieved. I haven't had a Mac for long time so I can't speak to the details of what works and what doesn't. FWIW I use Linux and on Linux, Chrome makes no attempt at all to use the native platform theme, while Firefox does a pretty good job.