diff --git a/www/firefox/Makefile b/www/firefox/Makefile
index ab713a16dfa7..9304e52ef059 100644
--- a/www/firefox/Makefile
+++ b/www/firefox/Makefile
@@ -1,75 +1,76 @@
 # Created by: Alan Eldridge <alane@FreeBSD.org>
 
 PORTNAME=	firefox
 DISTVERSION=	99.0.1
+PORTREVISION=	1
 PORTEPOCH=	2
 CATEGORIES=	www
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}/source \
 		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}${DISTVERSIONSUFFIX}-candidates/build2/source
 DISTFILES=	${DISTNAME}.source${EXTRACT_SUFX}
 
 MAINTAINER=	gecko@FreeBSD.org
 COMMENT=	Web browser based on the browser portion of Mozilla
 
 BUILD_DEPENDS=	nspr>=4.32:devel/nspr \
 		nss>=3.76:security/nss \
 		icu>=70.1:devel/icu \
 		libevent>=2.1.8:devel/libevent \
 		harfbuzz>=3.4.0:print/harfbuzz \
 		graphite2>=1.3.14:graphics/graphite2 \
 		png>=1.6.37:graphics/png \
 		dav1d>=1.0.0:multimedia/dav1d \
 		libvpx>=1.8.2:multimedia/libvpx \
 		${PYTHON_PKGNAMEPREFIX}sqlite3>0:databases/py-sqlite3@${PY_FLAVOR} \
 		v4l_compat>0:multimedia/v4l_compat \
 		autoconf-2.13:devel/autoconf213 \
 		nasm:devel/nasm \
 		yasm:devel/yasm \
 		zip:archivers/zip
 
 USE_GECKO=	gecko
 CONFLICTS_INSTALL=	firefox-esr
 USE_MOZILLA=	-sqlite
 CFLAGS_powerpc64le=	-DSQLITE_BYTEORDER=1234
 # work around bindgen not finding ICU, e.g.
 # dist/include/mozilla/intl/ICU4CGlue.h:8:10: fatal error: 'unicode/uenum.h' file not found, err: true
 CONFIGURE_ENV+=	BINDGEN_CFLAGS="-I${LOCALBASE}/include"
 
 USES=		tar:xz
 
 FIREFOX_ICON=		${MOZILLA}.png
 FIREFOX_ICON_SRC=	${PREFIX}/lib/${MOZILLA}/browser/chrome/icons/default/default48.png
 FIREFOX_DESKTOP=	${MOZSRC}/taskcluster/docker/${MOZILLA}-snap/${MOZILLA}.desktop
 MOZ_OPTIONS=	--enable-application=browser \
 		--enable-official-branding
 
 .include "${.CURDIR}/../../www/firefox/Makefile.options"
 
 .include <bsd.port.options.mk>
 
 .if ${ARCH} == powerpc64
 MOZ_OPTIONS+=	--disable-webrtc --without-wasm-sandboxed-libraries
 .else
 BUILD_DEPENDS+=	${LOCALBASE}/share/wasi-sysroot/lib/wasm32-wasi/libc++abi.a:devel/wasi-libcxx \
 		${LOCALBASE}/share/wasi-sysroot/lib/wasm32-wasi/libc.a:devel/wasi-libc \
 		${LOCALBASE}/llvm${LLVM_DEFAULT}/lib/clang/${LLVM_VERSION}/lib/wasi/libclang_rt.builtins-wasm32.a:devel/wasi-compiler-rt${LLVM_DEFAULT}
 MOZ_OPTIONS+=	--with-wasi-sysroot=${LOCALBASE}/share/wasi-sysroot
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e 's/%u/%U/' -e '/X-MultipleArgs/d' \
 		-e '/^Icon/s/=.*/=${FIREFOX_ICON:R}/' \
 		${FIREFOX_DESKTOP}
 	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
 		${WRKSRC}/browser/app/nsBrowserApp.cpp
 
 pre-configure:
 	(cd ${WRKSRC} && ${LOCALBASE}/bin/autoconf-2.13)
 	(cd ${WRKSRC}/js/src/ && ${LOCALBASE}/bin/autoconf-2.13)
 
 post-install:
 	${INSTALL_DATA} ${FIREFOX_DESKTOP} ${STAGEDIR}${PREFIX}/share/applications/
 	${MKDIR} ${STAGEDIR}${PREFIX}/share/pixmaps
 	${LN} -sf ${FIREFOX_ICON_SRC} ${STAGEDIR}${PREFIX}/share/pixmaps/${FIREFOX_ICON}
 
 .include <bsd.port.mk>
diff --git a/www/firefox/files/patch-bug1716707 b/www/firefox/files/patch-bug1716707
new file mode 100644
index 000000000000..73e01ebb0eb1
--- /dev/null
+++ b/www/firefox/files/patch-bug1716707
@@ -0,0 +1,59 @@
+diff --git a/image/imgFrame.cpp b/image/imgFrame.cpp
+--- image/imgFrame.cpp
++++ image/imgFrame.cpp
+@@ -372,6 +372,15 @@ nsresult imgFrame::InitWithDrawable(gfxD
+     return NS_ERROR_OUT_OF_MEMORY;
+   }
+ 
++  if (aBackend == gfx::BackendType::SKIA && canUseDataSurface) {
++      // SKIA is lying about what format it returns on big endian
++      for (int ii=0; ii < mRawSurface->GetSize().Height()*mRawSurface->Stride() / 4; ++ii) {
++        uint32_t *vals = (uint32_t*)(mRawSurface->GetData());
++        uint32_t val = ((vals[ii] << 8) & 0xFF00FF00 ) | ((vals[ii] >> 8) & 0xFF00FF );
++        vals[ii] = (val << 16) | (val >> 16);
++      }
++  }
++
+   if (!canUseDataSurface) {
+     // We used an offscreen surface, which is an "optimized" surface from
+     // imgFrame's perspective.
+# HG changeset patch
+# User M. Sirringhaus <msirringhaus@suse.de>
+# Date 1645518286 -3600
+#      Tue Feb 22 09:24:46 2022 +0100
+# Node ID 494640792b4677f6462e95b90a54a4e22aeb738b
+# Parent  81832d035e101471dcf52dd91de287268add7a91
+
+diff --git a/gfx/webrender_bindings/RenderCompositorSWGL.cpp b/gfx/webrender_bindings/RenderCompositorSWGL.cpp
+--- gfx/webrender_bindings/RenderCompositorSWGL.cpp
++++ gfx/webrender_bindings/RenderCompositorSWGL.cpp
+@@ -7,6 +7,7 @@
+ #include "RenderCompositorSWGL.h"
+ 
+ #include "mozilla/gfx/Logging.h"
++#include "mozilla/gfx/Swizzle.h"
+ #include "mozilla/widget/CompositorWidget.h"
+ 
+ #ifdef MOZ_WIDGET_GTK
+@@ -134,6 +135,7 @@ bool RenderCompositorSWGL::AllocateMappe
+     mMappedData = map.mData;
+     mMappedStride = map.mStride;
+   }
++
+   MOZ_ASSERT(mMappedData != nullptr && mMappedStride > 0);
+   wr_swgl_init_default_framebuffer(mContext, bounds.x, bounds.y, bounds.width,
+                                    bounds.height, mMappedStride, mMappedData);
+@@ -235,6 +237,13 @@ void RenderCompositorSWGL::CommitMappedB
+   }
+   mDT->Flush();
+ 
++#if MOZ_BIG_ENDIAN()
++  // One swizzle to rule them all.
++  gfx::SwizzleData(mMappedData, mMappedStride, gfx::SurfaceFormat::B8G8R8A8,
++                   mMappedData, mMappedStride, gfx::SurfaceFormat::A8R8G8B8,
++                   mDT->GetSize());
++#endif
++
+   // Done with the DT. Hand it back to the widget and clear out any trace of it.
+   mWidget->EndRemoteDrawingInRegion(mDT, mDirtyRegion);
+   mDirtyRegion.SetEmpty();