diff --git a/firefox.spec b/firefox.spec
index 80913a41d9a2a8884c4e476d133ee8424f972393..c3e25dd299a1b560bb27fb1d7069b800c2dab2e0 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -88,7 +88,7 @@
 Summary:             Mozilla Firefox Web browser
 Name:                firefox
 Version:             79.0
-Release:             13
+Release:             14
 URL:                 https://www.mozilla.org/firefox/
 License:             MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:             https://archive.mozilla.org/pub/firefox/releases/%{version}/source/firefox-%{version}.source.tar.xz
@@ -190,6 +190,7 @@ Patch645:            0001-fix-wl_proxy_marshal_flags.patch
 Patch646:            0002-fix-from-collections-import-Iterable.patch
 Patch647:            fix-attribute-error-module-distutils-has-no-attribute-sysconfig.patch
 
+Requires:            ffmpeg
 %if %{?system_nss}
 BuildRequires:       pkgconfig(nspr) >= %{nspr_version} pkgconfig(nss) >= %{nss_version}
 BuildRequires:       nss-static >= %{nss_version}
@@ -813,6 +814,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %endif
 
 %changelog
+* Wed Aug 3 2022 caoyuanji <caoyuanji@kylinsec.com.cn> - 79.0-14
+- Fix attribute error module distutils has no attribute sysconfig
+
 * Thu Jul 21 2022 xu_ping <xuping33@h-partners.com> - 79.0-13
 - Fix attribute error module distutils has no attribute sysconfig