diff -r ce8a98f8d8d7 -r 7b1e775ff77a MozillaFirefox/MozillaFirefox.spec
--- a/MozillaFirefox/MozillaFirefox.spec	Sun Mar 05 20:50:55 2017 +0100
+++ b/MozillaFirefox/MozillaFirefox.spec	Sat Mar 11 16:31:55 2017 +0100
@@ -353,6 +353,7 @@
 ac_add_options --with-system-zlib
 ac_add_options --disable-updater
 ac_add_options --disable-tests
+ac_add_options --enable-alsa
 ac_add_options --disable-debug
 ac_add_options --enable-startup-notification
 #ac_add_options --enable-chrome-format=jar