diff --git a/extra/firefox/PKGBUILD b/extra/firefox/PKGBUILD
index 2e6aa658c..f40fce3bd 100644
--- a/extra/firefox/PKGBUILD
+++ b/extra/firefox/PKGBUILD
@@ -5,6 +5,7 @@
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
 #  - mozconfig changes for ARM
 #  - patch to remove NEON/SIMD checks from configure
+#  - upstream AArch64 webrtc patch
 
 highmem=1
 
@@ -33,14 +34,16 @@ source=(https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/$pkgver/source/
         firefox-install-dir.patch
         vendor.js
         firefox-fixed-loading-icon.png
-        no-neon.patch)
+        no-neon.patch
+        189d4b0f9f23.patch::https://hg.mozilla.org/releases/mozilla-b2g44_v2_5/raw-rev/189d4b0f9f23)
 sha256sums=('b1f9173c6ddbd2bf868d94a815fde364bc37aa46a00981903fd1fe86a8f873d8'
             '968c91780ce92fa27ae443df29ebb7440c26ee89ea3439a5e4ae5fd0ca3fab12'
             'c202e5e18da1eeddd2e1d81cb3436813f11e44585ca7357c4c5f1bddd4bec826'
             'd86e41d87363656ee62e12543e2f5181aadcff448e406ef3218e91865ae775cd'
             '4b50e9aec03432e21b44d18c4c97b2630bace606b033f7d556c9d3e3eb0f4fa4'
             '68e3a5b47c6d175cc95b98b069a15205f027cab83af9e075818d38610feb6213'
-            '6d0c1c9ca28b20d206ce24ca84f4d4e3f5d062a2e9cb7445fcb6c2cfea959b4a')
+            '6d0c1c9ca28b20d206ce24ca84f4d4e3f5d062a2e9cb7445fcb6c2cfea959b4a'
+            'cbd14ac4839062f4437d1db7cfd5fb9aaadb6786dc63612b219106e01000aafd')
 validpgpkeys=('2B90598A745E992F315E22C58AB132963A06537A')
 
 # Google API keys (see http://www.chromium.org/developers/how-tos/api-keys)
@@ -90,6 +93,7 @@ prepare() {
 
   [[ $CARCH == "aarch64" ]] && echo "ac_add_options --disable-gold" >> .mozconfig
   patch -Np0 -i ../no-neon.patch
+  patch -Np1 -i ../189d4b0f9f23.patch
 }
 
 build() {