diff --git a/0001-Avoid-build-bustage-when-building-against-glibc-2.36.patch b/0001-Avoid-build-bustage-when-building-against-glibc-2.36.patch
new file mode 100644
index 0000000000000000000000000000000000000000..ff96b2bbc428c1fd51769621ad14ffc32d5ae7c9
--- /dev/null
+++ b/0001-Avoid-build-bustage-when-building-against-glibc-2.36.patch
@@ -0,0 +1,52 @@
+From c654575e855174f787c9b9be3197a96e8a2f6c70 Mon Sep 17 00:00:00 2001
+From: caoyuanji <caoyuanji@kylinos.com.cn>
+Date: Mon, 29 Aug 2022 10:10:52 +0800
+Subject: [PATCH] Avoid build bustage when building against glibc 2.36 or
+ newer. r=RyanVM
+
+---
+ ipc/chromium/src/third_party/libevent/README.mozilla      | 5 +++++
+ .../src/third_party/libevent/linux/event2/event-config.h  | 8 ++++++--
+ 2 files changed, 11 insertions(+), 2 deletions(-)
+
+diff --git a/ipc/chromium/src/third_party/libevent/README.mozilla b/ipc/chromium/src/third_party/libevent/README.mozilla
+index 262a6228e4..2ed837e978 100644
+--- a/ipc/chromium/src/third_party/libevent/README.mozilla
++++ b/ipc/chromium/src/third_party/libevent/README.mozilla
+@@ -21,6 +21,11 @@ distinguish the two cases. If you get something wrong, the CHECK_EVENT_SIZEOF
+ static assertions in message_pump_libevent.cc will fail. If a new constant is
+ added, also add a static assertion for it to message_pump_libevent.cc.
+ 
++You also need to modify the EVENT__HAVE_ARC4RANDOM and EVENT__HAVE_ARC4RANDOM_BUF
++constants in the generated Linux header to account for the results of the arc4random
++and arc4random_buf configure checks.
++
++
+ 2. Apply the following patches from
+ ipc/chromium/src/third_party/libevent/patches/:
+ 
+diff --git a/ipc/chromium/src/third_party/libevent/linux/event2/event-config.h b/ipc/chromium/src/third_party/libevent/linux/event2/event-config.h
+index dd64dc6210..2844bcac67 100644
+--- a/ipc/chromium/src/third_party/libevent/linux/event2/event-config.h
++++ b/ipc/chromium/src/third_party/libevent/linux/event2/event-config.h
+@@ -26,11 +26,15 @@
+ /* Define to 1 if you have the `accept4' function. */
+ #define EVENT__HAVE_ACCEPT4 1
+ 
++#ifdef HAVE_ARC4RANDOM
+ /* Define to 1 if you have the `arc4random' function. */
+-/* #undef EVENT__HAVE_ARC4RANDOM */
++#define EVENT__HAVE_ARC4RANDOM 1
++#endif
+ 
++#ifdef HAVE_ARC4RANDOM_BUF
+ /* Define to 1 if you have the `arc4random_buf' function. */
+-/* #undef EVENT__HAVE_ARC4RANDOM_BUF */
++#define EVENT__HAVE_ARC4RANDOM_BUF 1
++#endif
+ 
+ /* Define to 1 if you have the <arpa/inet.h> header file. */
+ #define EVENT__HAVE_ARPA_INET_H 1
+-- 
+2.18.1
+
diff --git a/firefox.spec b/firefox.spec
index 80913a41d9a2a8884c4e476d133ee8424f972393..b4b5d709bc312bf20dbcac502b20ee60f596f10d 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
@@ -189,7 +189,9 @@ Patch644:            Deny-clone3-to-force-glibc-fallback.patch
 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
+Patch648:            0001-Avoid-build-bustage-when-building-against-glibc-2.36.patch
 
+Requires:            ffmpeg
 %if %{?system_nss}
 BuildRequires:       pkgconfig(nspr) >= %{nspr_version} pkgconfig(nss) >= %{nss_version}
 BuildRequires:       nss-static >= %{nss_version}
@@ -314,7 +316,7 @@ tar -xf %{SOURCE3}
 %patch215 -p1 -b .addons
 %patch219 -p1 -b .rhbz-1173156
 %patch224 -p1 -b .1170092
-%ifarch aarch64
+%ifarch x86_64 aarch64
 %patch226 -p1 -b .1354671
 %endif
 %patch227 -p1 -b .locale-debug
@@ -371,6 +373,7 @@ tar -xf %{SOURCE3}
 %patch645 -p1
 %patch646 -p1
 %patch647 -p1
+%patch648 -p1
 
 %{__rm} -f .mozconfig
 %{__cp} %{SOURCE10} .mozconfig
@@ -813,6 +816,10 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %endif
 
 %changelog
+* Wed Aug 3 2022 caoyuanji <caoyuanji@kylinsec.com.cn> - 79.0-14
+- The problem that the firefox browser cannot play audio and video
+- Avoid build bustage when building against glibc 2.36 or newer. r=RyanVM
+
 * Thu Jul 21 2022 xu_ping <xuping33@h-partners.com> - 79.0-13
 - Fix attribute error module distutils has no attribute sysconfig