diff --git a/PKGBUILD b/PKGBUILD
index f649ae9d4a1ef6703f902a32d04dee06e4265fd9..41a738a7355c7110acd2c98431b98a4258aec59d 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,21 +3,20 @@
 # Contributor: Jakub Schmidtke <sjakub@gmail.com>
 
 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' 'cargo')
+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 cargo 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
@@ -26,8 +25,8 @@ source=(https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/$pkgver/source/
         vendor.js
         firefox-symbolic.svg
         fix-wifi-scanner.diff)
-sha256sums=('aa770cb8552bdcf4a7e8bb0ecde27d41ee5b2a972335c6b24dd3afb4d911dfe3'
-            '3b0c6b08c0211d8c5a02aa050755276ec864c5f2c5ac1a3d3f9f8a9af6512737'
+sha256sums=('54bb9bccbf9eed0c7715ae7f45330bf41ce24b756f5fdecb380e06709a6ac5a4'
+            'd269c6f13ba588726edbb7f4518eb6c2ce56a6016289b47f587f25c3219805fc'
             '75c526e9669b91b4fe5dcea650a1e8419220abb2e9564184f0d984c71eae82e8'
             'd86e41d87363656ee62e12543e2f5181aadcff448e406ef3218e91865ae775cd'
             'f61ea706ce6905f568b9bdafd1b044b58f20737426f0aa5019ddb9b64031a269'
diff --git a/mozconfig b/mozconfig
index 39db3a38ad6f07c8bc8bb3b688349edd7e9112fb..8aee8eb19d7de76ad6d88d3ac0d8dfa75b97fe89 100644
--- a/mozconfig
+++ b/mozconfig
@@ -27,6 +27,7 @@ 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