diff --git a/.abf.yml b/.abf.yml
index 57534c6..d983cb3 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,2 +1,2 @@
 sources:
-  firefox-50.0.1.source.tar.xz: 50f157e64a3d791da3612bf625a975a129ba5f7f
+  firefox-50.0.2.source.tar.xz: 083b9a803b25064b2d7d43e289797a9f2a2e9e5d
diff --git a/firefox.spec b/firefox.spec
index 683e07f..14a0d59 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -7,7 +7,7 @@
 # This also means only STABLE upstream releases, NO betas.
 # This is a discussed topic. Please, do not flame it again.
 
-%define major 50.0.1
+%define major 50.0.2
 # (tpg) set version HERE !!!
 %define realver %{major}
 %define firefox_appid \{ec8030f7-c20a-464f-9b0e-13a3a9e97384\}
@@ -62,7 +62,7 @@ Patch219:	rhbz-1173156.patch
 
 BuildRequires:	gtk+2-devel
 %if %{toolkit_gtk3}
-BuildRequires:  gtk+3-devel
+BuildRequires:	gtk+3-devel
 %endif
 
 BuildRequires:	unzip
@@ -220,7 +220,7 @@ export MOZCONFIG=`pwd`/mozconfig
 cat << EOF > $MOZCONFIG
 mk_add_options MOZILLA_OFFICIAL=1
 mk_add_options BUILD_OFFICIAL=1
-mk_add_options MOZ_MAKE_FLAGS="-j1"
+mk_add_options MOZ_MAKE_FLAGS="%{_smp_mflags}"
 mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj
 ac_add_options --host=%{_host}
 ac_add_options --target=%{_target_platform}