diff --git a/third_party/libwebrtc/api/audio_codecs/audio_decoder_factory.h b/third_party/libwebrtc/api/audio_codecs/audio_decoder_factory.h
index 4e05d1b9e147..73fbff3d6e8d 100644
--- a/third_party/libwebrtc/api/audio_codecs/audio_decoder_factory.h
+++ b/third_party/libwebrtc/api/audio_codecs/audio_decoder_factory.h
@@ -222,6 +222,12 @@ codec_pair_id
 )
 {
 #
+if
+defined
+(
+__clang__
+)
+#
 pragma
 clang
 diagnostic
@@ -237,6 +243,8 @@ Wdeprecated
 -
 declarations
 "
+#
+endif
 return
 MakeAudioDecoder
 (
@@ -245,10 +253,18 @@ codec_pair_id
 )
 ;
 #
+if
+defined
+(
+__clang__
+)
+#
 pragma
 clang
 diagnostic
 pop
+#
+endif
 }
 }
 ;
diff --git a/third_party/libwebrtc/moz-patch-stack/0122.patch b/third_party/libwebrtc/moz-patch-stack/0122.patch
new file mode 100644
index 000000000000..6a965049a6c6
--- /dev/null
+++ b/third_party/libwebrtc/moz-patch-stack/0122.patch
@@ -0,0 +1,220 @@
+From
+:
+Michael
+Froman
+<
+mfroman
+mozilla
+.
+com
+>
+Date
+:
+Thu
+19
+Sep
+2024
+20
+:
+27
+:
+00
+-
+0500
+Subject
+:
+Bug
+1918268
+-
+(
+fix
+-
+e0fe4200eb
+)
+upstream
+added
+pragma
+clang
+statements
+that
+need
+to
+be
+wrapped
+Mercurial
+Revision
+:
+https
+:
+/
+/
+hg
+.
+mozilla
+.
+org
+/
+mozilla
+-
+central
+/
+rev
+/
+bc593cd2eaf8b31b72e9ec7cb6ff8527097a7041
+-
+-
+-
+api
+/
+audio_codecs
+/
+audio_decoder_factory
+.
+h
+|
+4
++
++
++
++
+1
+file
+changed
+4
+insertions
+(
++
+)
+diff
+-
+-
+git
+a
+/
+api
+/
+audio_codecs
+/
+audio_decoder_factory
+.
+h
+b
+/
+api
+/
+audio_codecs
+/
+audio_decoder_factory
+.
+h
+index
+282d4d9992
+.
+.
+4a157959f0
+100644
+-
+-
+-
+a
+/
+api
+/
+audio_codecs
+/
+audio_decoder_factory
+.
+h
++
++
++
+b
+/
+api
+/
+audio_codecs
+/
+audio_decoder_factory
+.
+h
+-
+60
+10
++
+60
+14
+class
+AudioDecoderFactory
+:
+public
+RefCountInterface
+{
+const
+Environment
+&
+env
+const
+SdpAudioFormat
+&
+format
+absl
+:
+:
+optional
+<
+AudioCodecPairId
+>
+codec_pair_id
+)
+{
++
+#
+if
+defined
+(
+__clang__
+)
+#
+pragma
+clang
+diagnostic
+push
+#
+pragma
+clang
+diagnostic
+ignored
+"
+-
+Wdeprecated
+-
+declarations
+"
++
+#
+endif
+return
+MakeAudioDecoder
+(
+format
+codec_pair_id
+)
+;
++
+#
+if
+defined
+(
+__clang__
+)
+#
+pragma
+clang
+diagnostic
+pop
++
+#
+endif
+}
+}
+;