diff --git a/build-big-endian.patch b/build-big-endian.patch
new file mode 100644
index 0000000..e8ec439
--- /dev/null
+++ b/build-big-endian.patch
@@ -0,0 +1,84 @@
+diff -up firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h.big-endian firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h
+--- firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h.big-endian	2018-04-09 22:50:48.000000000 +0200
++++ firefox-60.0/gfx/skia/skia/include/core/SkColorPriv.h	2018-04-18 11:51:38.748680174 +0200
+@@ -54,18 +54,19 @@ static inline U8CPU SkUnitScalarClampToB
+  *
+  *  Here we enforce this constraint.
+  */
+-
++/*
+ #ifdef SK_CPU_BENDIAN
+     #define SK_RGBA_R32_SHIFT   24
+     #define SK_RGBA_G32_SHIFT   16
+     #define SK_RGBA_B32_SHIFT   8
+     #define SK_RGBA_A32_SHIFT   0
+ #else
++*/
+     #define SK_RGBA_R32_SHIFT   0
+     #define SK_RGBA_G32_SHIFT   8
+     #define SK_RGBA_B32_SHIFT   16
+     #define SK_RGBA_A32_SHIFT   24
+-#endif
++/*#endif*/
+ 
+ #define SkGetPackedA32(packed)      ((uint32_t)((packed) << (24 - SK_A32_SHIFT)) >> 24)
+ #define SkGetPackedR32(packed)      ((uint32_t)((packed) << (24 - SK_R32_SHIFT)) >> 24)
+diff -up firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h.big-endian firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h
+--- firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h.big-endian	2018-04-09 22:50:48.000000000 +0200
++++ firefox-60.0/gfx/skia/skia/include/core/SkImageInfo.h	2018-04-18 11:51:38.748680174 +0200
+@@ -84,7 +84,8 @@ enum SkColorType {
+ #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
+     kN32_SkColorType = kRGBA_8888_SkColorType,
+ #else
+-    #error "SK_*32_SHIFT values must correspond to BGRA or RGBA byte order"
++    //#error "SK_*32_SHIFT values must correspond to BGRA or RGBA byte order"
++    kN32_SkColorType = kBGRA_8888_SkColorType
+ #endif
+ };
+ 
+diff -up firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h.big-endian firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h
+--- firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h.big-endian	2018-04-09 22:50:48.000000000 +0200
++++ firefox-60.0/gfx/skia/skia/include/gpu/GrTypes.h	2018-04-18 11:51:38.748680174 +0200
+@@ -344,15 +344,13 @@ enum GrPixelConfig {
+ static const int kGrPixelConfigCnt = kLast_GrPixelConfig + 1;
+ 
+ // Aliases for pixel configs that match skia's byte order.
+-#ifndef SK_CPU_LENDIAN
+-    #error "Skia gpu currently assumes little endian"
+-#endif
+ #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
+     static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
+ #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
+     static const GrPixelConfig kSkia8888_GrPixelConfig = kRGBA_8888_GrPixelConfig;
+ #else
+-    #error "SK_*32_SHIFT values must correspond to GL_BGRA or GL_RGBA format."
++    static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
++    static const GrPixelConfig kSkiaGamma8888_GrPixelConfig = kSBGRA_8888_GrPixelConfig;
+ #endif
+ 
+ /**
+diff -up firefox-60.0/gfx/skia/skia/src/core/SkColorData.h.big-endian firefox-60.0/gfx/skia/skia/src/core/SkColorData.h
+--- firefox-60.0/gfx/skia/skia/src/core/SkColorData.h.big-endian	2018-04-18 13:42:06.980476156 +0200
++++ firefox-60.0/gfx/skia/skia/src/core/SkColorData.h	2018-04-18 13:42:50.493520552 +0200
+@@ -31,18 +31,19 @@
+  *
+  *  Here we enforce this constraint.
+  */
+-
++/*
+ #ifdef SK_CPU_BENDIAN
+     #define SK_BGRA_B32_SHIFT   24
+     #define SK_BGRA_G32_SHIFT   16
+     #define SK_BGRA_R32_SHIFT   8
+     #define SK_BGRA_A32_SHIFT   0
+ #else
++*/
+     #define SK_BGRA_B32_SHIFT   0
+     #define SK_BGRA_G32_SHIFT   8
+     #define SK_BGRA_R32_SHIFT   16
+     #define SK_BGRA_A32_SHIFT   24
+-#endif
++//#endif
+ 
+ #if defined(SK_PMCOLOR_IS_RGBA) && defined(SK_PMCOLOR_IS_BGRA)
+     #error "can't define PMCOLOR to be RGBA and BGRA"
diff --git a/mozilla-1353817.patch b/mozilla-1353817.patch
new file mode 100644
index 0000000..dc8d8f8
--- /dev/null
+++ b/mozilla-1353817.patch
@@ -0,0 +1,27 @@
+From 1cc652f5525f458b0b4ceb12af24bf5a4367db32 Mon Sep 17 00:00:00 2001
+From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
+Date: Tue, 23 May 2017 13:09:48 -0400
+Subject: [PATCH] Bug 1353817: Include SkNx_neon.h for ARM64 too
+
+This fixes build errors as arm_neon.h was missing along with some
+missing converters.
+---
+ gfx/skia/skia/src/core/SkNx.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gfx/skia/skia/src/core/SkNx.h b/gfx/skia/skia/src/core/SkNx.h
+index 6bca856..b0427aa 100644
+--- a/gfx/skia/skia/src/core/SkNx.h
++++ b/gfx/skia/skia/src/core/SkNx.h
+@@ -299,7 +299,7 @@ typedef SkNx<4, uint32_t> Sk4u;
+ // Include platform specific specializations if available.
+ #if !defined(SKNX_NO_SIMD) && SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2
+     #include "../opts/SkNx_sse.h"
+-#elif !defined(SKNX_NO_SIMD) && defined(SK_ARM_HAS_NEON)
++#elif !defined(SKNX_NO_SIMD) && (defined(SK_ARM_HAS_NEON) || defined(SK_CPU_ARM64))
+     #include "../opts/SkNx_neon.h"
+ #else
+ 
+-- 
+2.9.4
+
diff --git a/thunderbird.spec b/thunderbird.spec
index 574796b..dfac433 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -113,6 +113,8 @@ Patch104:       firefox-gcc-6.0.patch
 
 # PPC fix
 Patch304:       mozilla-1245783.patch
+Patch305:       build-big-endian.patch
+Patch306:       mozilla-1353817.patch
 
 # Fedora specific patches
 
@@ -226,6 +228,8 @@ debug %{name}, you want to install %{name}-debuginfo instead.
 # Patch for big endian platforms only
 %if 0%{?big_endian}
 %patch26 -p1 -b .icu
+%patch305 -p1 -b .big-endian
+%patch306 -p1 -b .1353817
 %endif
 #cd ..