--- mozconfig.in.orig	2016-11-13 10:28:07.030229334 +0100
+++ mozconfig.in.new	2016-11-13 12:11:17.129308294 +0100
@@ -16 +16 @@
-ac_add_options --enable-jemalloc
+ac_add_options --disable-jemalloc
@@ -21 +21 @@
-ac_add_options --enable-optimize="-O2 -msse2 -mfpmath=sse"
+ac_add_options --enable-optimize="-O3 -msse2 -mfpmath=sse"
@@ -50,2 +50,6 @@
-ac_add_options --enable-pulseaudio
-ac_add_options --enable-startup-notification
+ac_add_options --disable-pulseaudio
+ac_add_options --disable-startup-notification
+ac_add_options --enable-canvas
+ac_add_options --enable-svg
+ac_add_options --enable-accessibility
+ac_add_options --enable-xinerama
@@ -52,0 +57,6 @@
+
+# link to system libraries instead of internal ones
+#ac_add_options --with-system-zlib
+#ac_add_options --with-system-png
+#ac_add_options --with-system-jpeg
+#ac_add_options --enable-system-cairo