diff --git a/extra/firefox/0003-Bug-1820416-Use-correct-FFVPX-headers-from-ffmpeg-6..patch b/extra/firefox/0003-Bug-1820416-Use-correct-FFVPX-headers-from-ffmpeg-6..patch
new file mode 100644
index 000000000..b0381041d
--- /dev/null
+++ b/extra/firefox/0003-Bug-1820416-Use-correct-FFVPX-headers-from-ffmpeg-6..patch
@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: stransky <stransky@redhat.com>
+Date: Thu, 9 Mar 2023 13:16:19 +0000
+Subject: [PATCH] Bug 1820416 Use correct FFVPX headers from ffmpeg 6.0
+ r=padenot
+
+Differential Revision: https://phabricator.services.mozilla.com/D172116
+---
+ dom/media/platforms/ffmpeg/ffvpx/moz.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dom/media/platforms/ffmpeg/ffvpx/moz.build b/dom/media/platforms/ffmpeg/ffvpx/moz.build
+index 188b866fc9de..cda0960787a5 100644
+--- a/dom/media/platforms/ffmpeg/ffvpx/moz.build
++++ b/dom/media/platforms/ffmpeg/ffvpx/moz.build
+@@ -20,7 +20,7 @@ SOURCES += [
+ ]
+ LOCAL_INCLUDES += [
+     "..",
+-    "../ffmpeg59/include",
++    "../ffmpeg60/include",
+     "/media/mozva",
+ ]
+ 
diff --git a/extra/firefox/PKGBUILD b/extra/firefox/PKGBUILD
index 86faa15ae..3682dd7f5 100644
--- a/extra/firefox/PKGBUILD
+++ b/extra/firefox/PKGBUILD
@@ -11,7 +11,7 @@ highmem=1
 
 pkgname=firefox
 pkgver=110.0.1
-pkgrel=2
+pkgrel=3
 pkgdesc="Standalone web browser from mozilla.org"
 url="https://www.mozilla.org/firefox/"
 arch=(x86_64)
@@ -71,6 +71,7 @@ source=(
   identity-icons-brand.svg
   0001-libwebrtc-screen-cast-sync.patch
   0002-Bug-1819374-Squashed-ffmpeg-6.0-update.patch
+  0003-Bug-1820416-Use-correct-FFVPX-headers-from-ffmpeg-6..patch
   build-arm-libopus.patch
 )
 validpgpkeys=(
@@ -82,6 +83,7 @@ sha256sums=('f19bb74d684b992625abca68f5776198974cd2785eb5d02d51ba007fc998491f'
             'a9b8b4a0a1f4a7b4af77d5fc70c2686d624038909263c795ecc81e0aec7711e9'
             '43c83101b7ad7dba6f5fffeb89b70a661a547d506a031ea2beada42ccf04eec7'
             '9347e45cfe3e915b2293f7467fd61c216ec10823e91c70e5aeb9ca08cc5fcfcf'
+            'be9ba079a931d5e881ce38430d418cc834e8c6b157af6c79ea267998caece806'
             '2d4d91f7e35d0860225084e37ec320ca6cae669f6c9c8fe7735cdbd542e3a7c9')
 b2sums=('ff196016e0271f7828163b8f767f3321b5ee08ef6bd0b03b134e17a1e5b62666f10ae80a14569438f6ac1c995a7a8422265eaabbc505b6a86e95a66b5db07209'
         'SKIP'
@@ -89,6 +91,7 @@ b2sums=('ff196016e0271f7828163b8f767f3321b5ee08ef6bd0b03b134e17a1e5b62666f10ae80
         '63a8dd9d8910f9efb353bed452d8b4b2a2da435857ccee083fc0c557f8c4c1339ca593b463db320f70387a1b63f1a79e709e9d12c69520993e26d85a3d742e34'
         '2bf65874c8c1f41c9273b68d74f4fe5c81dca5acbad0b9a5f917df1d46e1b2a1fb25d42a419eb885e76f4d193483cdeb6294e14ed4b2e241c34b84565b6ffd72'
         '086ed7d2c2d4efd441220e2d5244afd8a9a1327fed42b98f1a9e0eb05590abbf893716b3f5e01db1234eafe5386097013578dfc7c20fc8367860ce5cd9611aac'
+        'be47c370c1b765921a6ffbb0eeaceaabc26483629b2ebd73c38f36b3ac418d1746fa021b5d444264641ff7c0c13e688a752758bd75c84e0297aceeaec0062ff2'
         '6e5980e56343a23bce4fcda58f6abc8f2debca0c278c87b09e53abb17ff15849c26e8df3bbff2388985f8fe5a4e9be9982c602ef7159546f0ae335fca1000a41')
 
 # Google API keys (see http://www.chromium.org/developers/how-tos/api-keys)
@@ -116,6 +119,10 @@ prepare() {
   # https://bugzilla.mozilla.org/show_bug.cgi?id=1819374
   patch -Np1 -i ../0002-Bug-1819374-Squashed-ffmpeg-6.0-update.patch
 
+  # https://bugs.archlinux.org/task/77796
+  # https://bugzilla.mozilla.org/show_bug.cgi?id=1820416
+  patch -Np1 -i ../0003-Bug-1820416-Use-correct-FFVPX-headers-from-ffmpeg-6..patch
+
   echo -n "$_google_api_key" >google-api-key
   echo -n "$_mozilla_api_key" >mozilla-api-key