diff --git a/extra/firefox/PKGBUILD b/extra/firefox/PKGBUILD
index b9606ca5c..3c5b4f3a7 100644
--- a/extra/firefox/PKGBUILD
+++ b/extra/firefox/PKGBUILD
@@ -5,25 +5,25 @@
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
 #  - mozconfig changes for ARM
 #  - patches to build on ARM
+#  - remove makedepend on cargo
 
 highmem=1
 
 pkgname=firefox
-pkgver=50.0.2
+pkgver=50.1.0
 pkgrel=1
 pkgdesc="Standalone web browser from mozilla.org"
-arch=('i686' 'x86_64')
-license=('MPL' 'GPL' 'LGPL')
+arch=(i686 x86_64)
+license=(MPL GPL LGPL)
 url="https://www.mozilla.org/firefox/"
-depends=('gtk3' 'gtk2' 'mozilla-common' 'libxt' 'startup-notification' 'mime-types'
-         'dbus-glib' 'alsa-lib' 'ffmpeg' 'libvpx' 'libevent' 'nss' 'hunspell'
-         'sqlite' 'ttf-font' 'icu')
-makedepends=('unzip' 'zip' 'diffutils' 'python2' 'yasm' 'mesa' 'imake' 'gconf'
-             'libpulse' 'inetutils' 'xorg-server-xvfb' 'autoconf2.13')
+depends=(gtk3 gtk2 mozilla-common libxt startup-notification mime-types dbus-glib alsa-lib ffmpeg
+         libvpx libevent nss hunspell sqlite ttf-font icu)
+makedepends=(unzip zip diffutils python2 yasm mesa imake gconf libpulse inetutils xorg-server-xvfb
+             autoconf2.13 jack)
 optdepends=('networkmanager: Location detection via available WiFi networks'
             'libnotify: Notification integration'
             'upower: Battery API')
-options=('!emptydirs' '!makeflags')
+options=(!emptydirs !makeflags)
 source=(https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/$pkgver/source/firefox-$pkgver.source.tar.xz
         mozconfig
         firefox.desktop
@@ -34,8 +34,8 @@ source=(https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/$pkgver/source/
         fix-wifi-scanner.diff
         mozilla-1253216.patch
         mozilla-build-arm.patch)
-sha256sums=('aa770cb8552bdcf4a7e8bb0ecde27d41ee5b2a972335c6b24dd3afb4d911dfe3'
-            '640e529734e4e021b99f2e28205d62b915b0884e487bca1b7d81a7d3164676ab'
+sha256sums=('54bb9bccbf9eed0c7715ae7f45330bf41ce24b756f5fdecb380e06709a6ac5a4'
+            'a54cc6b1cd06cb6c48b6d23923cc2f60fe1d2f6de1d8dfc348a1d641fddcc299'
             '75c526e9669b91b4fe5dcea650a1e8419220abb2e9564184f0d984c71eae82e8'
             'd86e41d87363656ee62e12543e2f5181aadcff448e406ef3218e91865ae775cd'
             'f61ea706ce6905f568b9bdafd1b044b58f20737426f0aa5019ddb9b64031a269'
diff --git a/extra/firefox/mozconfig b/extra/firefox/mozconfig
index d7cb334fb..2533075cb 100644
--- a/extra/firefox/mozconfig
+++ b/extra/firefox/mozconfig
@@ -28,6 +28,7 @@ ac_add_options --enable-system-ffi
 ac_add_options --enable-system-pixman
 
 # Features
+ac_add_options --enable-jack
 ac_add_options --enable-startup-notification
 ac_add_options --disable-updater
 ac_add_options --disable-crashreporter