diff --git a/firefox-mozconfig b/firefox-mozconfig
index 2f09eb2..9cae2b0 100644
--- a/firefox-mozconfig
+++ b/firefox-mozconfig
@@ -1,11 +1,9 @@
 . $topsrcdir/browser/config/mozconfig
 
 ac_add_options --with-system-zlib
-ac_add_options --with-system-bz2
 ac_add_options --disable-strip
 #ac_add_options --enable-libnotify
 ac_add_options --enable-necko-wifi
-ac_add_options --enable-startup-notification
 ac_add_options --disable-updater
 ac_add_options --enable-chrome-format=omni
 ac_add_options --enable-pulseaudio
diff --git a/firefox-nss-version.patch b/firefox-nss-version.patch
index 652feab..fee93bb 100644
--- a/firefox-nss-version.patch
+++ b/firefox-nss-version.patch
@@ -1,12 +1,12 @@
-diff -up firefox-76.0/old-configure.in.nss-version firefox-76.0/old-configure.in
---- firefox-76.0/old-configure.in.nss-version	2020-05-03 19:12:01.771863688 +0200
-+++ firefox-76.0/old-configure.in	2020-05-03 19:17:53.216898766 +0200
-@@ -1506,7 +1506,7 @@ MOZ_ARG_WITH_BOOL(system-nss,
-     _USE_SYSTEM_NSS=1 )
+diff -up firefox-78.0/toolkit/moz.configure.nss-version firefox-78.0/toolkit/moz.configure
+--- firefox-78.0/toolkit/moz.configure.nss-version	2020-06-30 08:47:09.657501414 +0200
++++ firefox-78.0/toolkit/moz.configure	2020-06-30 08:47:12.652510169 +0200
+@@ -2089,7 +2089,7 @@ option('--with-system-nss', help='Use sy
  
- if test -n "$_USE_SYSTEM_NSS"; then
--    AM_PATH_NSS(3.52.1, [MOZ_SYSTEM_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
-+    AM_PATH_NSS(3.52, [MOZ_SYSTEM_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
- fi
+ imply_option('--with-system-nspr', True, when='--with-system-nss')
+ 
+-nss_pkg = pkg_check_modules('NSS', 'nss >= 3.53.1', when='--with-system-nss', config=False)
++nss_pkg = pkg_check_modules('NSS', 'nss >= 3.53.0', when='--with-system-nss', config=False)
+ 
+ set_config('MOZ_SYSTEM_NSS', True, when='--with-system-nss')
  
- NSS_CFLAGS="$NSS_CFLAGS -I${DIST}/include/nss"
diff --git a/firefox.spec b/firefox.spec
index 01d1964..848d6f1 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -359,7 +359,7 @@ This package contains results of tests executed during build.
 %if 0%{?big_endian}
 %patch26 -p1 -b .icu
 %endif
-#%patch46 -p1 -b .nss-version
+%patch46 -p1 -b .nss-version
 %patch47 -p1 -b .fedora-shebang
 %patch48 -p1 -b .build-arm-wasm
 %patch49 -p1 -b .build-arm-libaom