diff --git a/extra/firefox/PKGBUILD b/extra/firefox/PKGBUILD
index 04f447683..b2c50df1f 100644
--- a/extra/firefox/PKGBUILD
+++ b/extra/firefox/PKGBUILD
@@ -11,7 +11,6 @@
 
 buildarch=12
 highmem=1
-noautobuild=1
 
 pkgname=firefox
 pkgver=55.0.3
@@ -32,14 +31,16 @@ options=(!emptydirs !makeflags !strip)
 source=(https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/$pkgver/source/firefox-$pkgver.source.tar.xz
         $pkgname.desktop firefox-symbolic.svg
         firefox-install-dir.patch no-crmf.diff fix-wifi-scanner.diff
-        rhbz-1354671.patch)
-sha256sums=('07843e68f2f64842bb230b7fe821e45c82944e64dc3f2a3a90d3ea9f1efa7f77'
+        rhbz-1354671.patch
+        https://src.fedoraproject.org/rpms/firefox/raw/master/f/build-cubeb-pulse-arm.patch)
+sha256sums=('891836df85f8798c49f7b25661820f64d1311d59703c716eda471819b93ccda2'
             'ada313750e6fb14558b37c764409a17c1672a351a46c73b350aa1fe4ea9220ef'
             'a2474b32b9b2d7e0fb53a4c89715507ad1c194bef77713d798fa39d507def9e9'
             'd86e41d87363656ee62e12543e2f5181aadcff448e406ef3218e91865ae775cd'
             'fb85a538044c15471c12cf561d6aa74570f8de7b054a7063ef88ee1bdfc1ccbb'
             '9765bca5d63fb5525bbd0520b7ab1d27cabaed697e2fc7791400abc3fa4f13b8'
-            '22d5e5c07e759422027867121b24cdbcab8812670ca8e2e92825029f30eecbbd')
+            '22d5e5c07e759422027867121b24cdbcab8812670ca8e2e92825029f30eecbbd'
+            '434298ee0e91990967af03614c0d3232024e35dd38ca9f7dce52a8a7363e2382')
 validpgpkeys=('2B90598A745E992F315E22C58AB132963A06537A')
 
 # Google API keys (see http://www.chromium.org/developers/how-tos/api-keys)
@@ -119,6 +120,7 @@ END
     echo 'ac_add_options --enable-optimize="-O2"' >> .mozconfig
     patch -p1 -i ../rhbz-1354671.patch
   fi
+  patch -p1 -i ../build-cubeb-pulse-arm.patch
 }
 
 build() {