diff --git a/srcpkgs/firefox/patches/disable-image-format-warning.patch b/srcpkgs/firefox/patches/disable-image-format-warning.patch
new file mode 100644
index 0000000000..bd56e6bc37
--- /dev/null
+++ b/srcpkgs/firefox/patches/disable-image-format-warning.patch
@@ -0,0 +1,15 @@
+Imported from Adélie. Firefox is prone to this warning on BE and
+it leads to huge .xsession-errors, and the warning is not very
+important or meaningful, so just disable it.
+
+--- gfx/2d/HelpersCairo.h
++++ gfx/2d/HelpersCairo.h
+@@ -147,7 +147,7 @@
+     case SurfaceFormat::R5G6B5_UINT16:
+       return CAIRO_FORMAT_RGB16_565;
+     default:
+-      gfxCriticalError() << "Unknown image format " << (int)format;
++      //gfxCriticalError() << "Unknown image format " << (int)format;
+       return CAIRO_FORMAT_ARGB32;
+   }
+ }
diff --git a/srcpkgs/firefox/patches/fix-i686-ppc-musl.patch b/srcpkgs/firefox/patches/fix-i686-ppc-musl.patch
new file mode 100644
index 0000000000..6df609bbf1
--- /dev/null
+++ b/srcpkgs/firefox/patches/fix-i686-ppc-musl.patch
@@ -0,0 +1,11 @@
+--- mozglue/misc/StackWalk.cpp	2017-04-11 04:13:21.000000000 +0200
++++ mozglue/misc/StackWalk.cpp	2017-11-29 15:23:07.218649970 +0100
+@@ -41,7 +41,7 @@
+ #define MOZ_STACKWALK_SUPPORTS_MACOSX 0
+ #endif
+ 
+-#if (defined(linux) && \
++#if defined(__GLIBC__) && (defined(linux) && \
+      ((defined(__GNUC__) && (defined(__i386) || defined(PPC))) || \
+       defined(HAVE__UNWIND_BACKTRACE)))
+ #define MOZ_STACKWALK_SUPPORTS_LINUX 1
diff --git a/srcpkgs/firefox/patches/yuv-be.patch b/srcpkgs/firefox/patches/yuv-be.patch
new file mode 100644
index 0000000000..1c26f2ecce
--- /dev/null
+++ b/srcpkgs/firefox/patches/yuv-be.patch
@@ -0,0 +1,48 @@
+# HG changeset patch
+# User A. Wilcox <AWilcox@Wilcox-Tech.com>
+# Date 1543674229 0
+#      Sat Dec 01 14:23:49 2018 +0000
+# Node ID 0309ff19e46b126c527e633518d7de8570442114
+# Parent  53107afbc21ec78e7ac46d37af212505f2032d5d
+Bug 1511604 - Swizzle YCbCr->RGB data on big-endian machines
+
+diff -r 53107afbc21e -r 0309ff19e46b gfx/ycbcr/YCbCrUtils.cpp
+--- gfx/ycbcr/YCbCrUtils.cpp	Wed Nov 07 04:50:21 2018 +0000
++++ gfx/ycbcr/YCbCrUtils.cpp	Sat Dec 01 14:23:49 2018 +0000
+@@ -3,7 +3,9 @@
+  * License, v. 2.0. If a copy of the MPL was not distributed with this
+  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ 
++#include "mozilla/EndianUtils.h"
+ #include "gfx2DGlue.h"
++#include "mozilla/gfx/Swizzle.h"
+ 
+ #include "YCbCrUtils.h"
+ #include "yuv_convert.h"
+@@ -236,6 +238,13 @@
+                           yuvtype,
+                           srcData.mYUVColorSpace);
+   }
++#if MOZ_BIG_ENDIAN
++  // libyuv makes endian-correct result, which needs to be swapped to BGRX
++  if (aDestFormat != SurfaceFormat::R5G6B5_UINT16)
++    gfx::SwizzleData(aDestBuffer, aStride, gfx::SurfaceFormat::X8R8G8B8,
++                     aDestBuffer, aStride, gfx::SurfaceFormat::B8G8R8X8,
++                     srcData.mPicSize);
++#endif
+ }
+ 
+ void
+@@ -257,6 +266,12 @@
+                         aSrcStrideYA,
+                         aSrcStrideUV,
+                         aDstStrideARGB);
++#if MOZ_BIG_ENDIAN
++  // libyuv makes endian-correct result, which needs to be swapped to BGRA
++  gfx::SwizzleData(aDstARGB, aDstStrideARGB, gfx::SurfaceFormat::A8R8G8B8,
++                   aDstARGB, aDstStrideARGB, gfx::SurfaceFormat::B8G8R8A8,
++                   IntSize(aWidth, aHeight));
++#endif
+ }
+ 
+ } // namespace gfx
diff --git a/srcpkgs/firefox/template b/srcpkgs/firefox/template
index b60ba6ab3f..d59598331c 100644
--- a/srcpkgs/firefox/template
+++ b/srcpkgs/firefox/template
@@ -40,6 +40,8 @@ case $XBPS_TARGET_MACHINE in
 	armv6*)
 		broken="required NEON extensions are not supported on armv6"
 		;;
+	ppc64*) ;;
+	ppc*) broken="ftbfs in several places" ;;
 esac
 
 post_extract() {
@@ -112,12 +114,10 @@ do_build() {
 		;;
 	esac
 
-	case "$XBPS_MACHINE" in
-	i686*)
+	if [ "$XBPS_WORDSIZE" -eq 32 ]; then
 		# ENOMEM
 		echo "ac_add_options --disable-debug-symbols" >>.mozconfig
-		;;
-	esac
+	fi
 
 	export LDFLAGS+=" -Wl,-rpath=/usr/lib/firefox"