Me: FreeBSD * 9.3-RELEASE-p4 FreeBSD 9.3-RELEASE-p4 #0 r273590M.

I was trying to build www/firefox from ports, but since version 33.0,1 I couldn't. (So, I still have built and working 32.0.3,1.)

The first thing, I needed to add #include <stdio.h> in /usr/ports/www/firefox/work/mozilla-release/media/webrtc/trunk/webrtc/modules/desktop_capture/x11/desktop_device_info_x11.hh (or .cc ) due to snprintf usage.

The next thing, I obviously couldn't compile with base gcc, since "Only GCC 4.4 or older is supported", so I tried with other compilers.
With base CLANG (that is 3.4.1). The error was "/usr/ports/www/firefox/work/mozilla-release/toolkit/system/gnome/nsGnomeVFSService.cpp:153:1: error: 
      static_assert failed "Reference-counted class nsGnomeVFSService should not
      have a public destructor. Try to make this class's destructor non-public.
      If that is really not possible, you can whitelist this class by providing
      a HasDangerousPublicDestructor specialization for it.
Just the same error with port's clang (3.5.0).

Also, I tried to compile with port's GCC48 (4.8.4) and gcc49 (4.9.2). The error was the same, but at first it came on other file: "../../../dist/include/nsISupportsImpl.h:91:3: error: static assertion failed: Reference-counted class nsGnomeVFSMimeApp should not have a public destructor. Try to make this class's destructor non-public. If that is really not possible, you can whitelist this class by providing a HasDangerousPublicDestructor specialization for it."

Can anyone compile that version of firefox?