--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/desktop/firefox/patches/firefox31-gnu-125-mozalloc.patch	Mon Jan 11 09:27:45 2016 -0800
@@ -0,0 +1,29 @@
+Correctly define malloc_usable_size
+
+Get correct abort() function definition for Solaris.
+
+--- mozilla-esr31/memory/mozalloc/mozalloc.cpp.orig	2015-06-04 11:10:38.830585129 -0700
++++ mozilla-esr31/memory/mozalloc/mozalloc.cpp	2015-06-04 11:10:38.830522608 -0700
+@@ -200,6 +200,8 @@
+ }
+ #endif // if defined(HAVE_VALLOC)
+ 
++extern "C" size_t malloc_usable_size(const void *ptr);
++
+ size_t
+ moz_malloc_usable_size(void *ptr)
+ {
+--- mozilla-esr31/memory/mozalloc/mozalloc_abort.cpp.orig	2015-06-04 11:10:38.830454359 -0700
++++ mozilla-esr31/memory/mozalloc/mozalloc_abort.cpp	2015-06-04 11:10:38.830381114 -0700
+@@ -34,7 +34,11 @@
+ // Define abort() here, so that it is used instead of the system abort(). This
+ // lets us control the behavior when aborting, in order to get better results
+ // on *NIX platforms. See mozalloc_abort for details.
++#if defined(SOLARIS)
++void std::abort(void)
++#else
+ void abort(void)
++#endif
+ {
+     mozalloc_abort("Redirecting call to abort() to mozalloc_abort\n");
+ }