diff --git a/extra/firefox/PKGBUILD b/extra/firefox/PKGBUILD
index d1860c0c8..f206e90cf 100644
--- a/extra/firefox/PKGBUILD
+++ b/extra/firefox/PKGBUILD
@@ -10,18 +10,20 @@
 
 buildarch=12
 highmem=1
+noautobuild=1
 
 pkgname=firefox
-pkgver=62.0.3
+pkgver=63.0
 pkgrel=1
 pkgdesc="Standalone web browser from mozilla.org"
 arch=(x86_64)
 license=(MPL GPL LGPL)
 url="https://www.mozilla.org/firefox/"
-depends=(gtk3 mozilla-common libxt startup-notification mime-types dbus-glib ffmpeg
-         nss hunspell-en_US sqlite ttf-font libpulse libvpx icu)
-makedepends=(unzip zip diffutils python2 yasm mesa imake inetutils xorg-server-xvfb
-             autoconf2.13 rust mercurial clang llvm jack gtk2 python)
+depends=(gtk3 mozilla-common libxt startup-notification mime-types dbus-glib
+         ffmpeg nss hunspell-en_US sqlite ttf-font libpulse libvpx icu)
+makedepends=(unzip zip diffutils python2-setuptools yasm mesa imake inetutils
+             xorg-server-xvfb autoconf2.13 rust mercurial clang llvm jack gtk2
+             python nodejs python2-psutil cbindgen)
 optdepends=('networkmanager: Location detection via available WiFi networks'
             'libnotify: Notification integration'
             'pulseaudio: Audio support'
@@ -30,7 +32,7 @@ options=(!emptydirs !makeflags !strip)
 source=("https://hg.mozilla.org/releases/mozilla-release/archive/FIREFOX_${pkgver//./_}_RELEASE.tar.gz"
         $pkgname.desktop firefox-symbolic.svg
         https://hg.mozilla.org/mozilla-central/raw-rev/537f4d1d837a)
-sha256sums=('c2ad388caa2d679c0740090c7071b4fa91c7ba0d7cea9aac2aad465a801ba257'
+sha256sums=('47ff34ff0ec51cdf7f5c453d91054543e123500b65593891e50144189adc04b8'
             '677e1bde4c6b3cff114345c211805c7c43085038ca0505718a11e96432e9811a'
             '9a1a572dc88014882d54ba2d3079a1cf5b28fa03c5976ed2cb763c93dabbd797'
             '9fa42f3a4ccd255b56f4157119c08ff19df9f972aa25af4cbb685e3683139c24')
@@ -49,6 +51,7 @@ _google_api_key=AIzaSyDwr302FpOSkGRpLlUpPThNTDPbXcIn_FM
 _mozilla_api_key=16674381-f021-49de-8622-3021c5942aff
 
 prepare() {
+  mkdir mozbuild
   cd mozilla-release-FIREFOX_${pkgver//./_}_RELEASE
 
   echo -n "$_google_api_key" >google-api-key
@@ -59,7 +62,6 @@ ac_add_options --enable-application=browser
 
 ac_add_options --prefix=/usr
 ac_add_options --enable-release
-#ac_add_options --enable-linker=gold
 #ac_add_options --enable-hardening
 ac_add_options --enable-rust-simd
 
@@ -79,15 +81,15 @@ ac_add_options --with-mozilla-api-keyfile=${PWD@Q}/mozilla-api-key
 ac_add_options --disable-webrtc
 
 # System libraries
-ac_add_options --with-system-zlib
+ac_add_options --enable-system-ffi
+ac_add_options --enable-system-sqlite
 ac_add_options --with-system-bz2
 ac_add_options --with-system-icu
 ac_add_options --with-system-jpeg
 ac_add_options --with-system-libvpx
 ac_add_options --with-system-nspr
 ac_add_options --with-system-nss
-ac_add_options --enable-system-sqlite
-ac_add_options --enable-system-ffi
+ac_add_options --with-system-zlib
 
 # Features
 ac_add_options --enable-alsa
@@ -114,6 +116,8 @@ build() {
   cd mozilla-release-FIREFOX_${pkgver//./_}_RELEASE
 
   export MOZ_SOURCE_REPO="$_repo"
+  export MOZ_NOSPAM=1
+  export MOZBUILD_STATE_PATH="$srcdir/mozbuild"
 
   ./mach build
   ./mach buildsymbols