diff -up firefox-61.0/gfx/skia/skia/src/jumper/SkJumper_stages.cpp.aarch64-skia firefox-61.0/gfx/skia/skia/src/jumper/SkJumper_stages.cpp
--- firefox-61.0/gfx/skia/skia/src/jumper/SkJumper_stages.cpp.aarch64-skia	2018-06-20 09:19:11.411939714 +0200
+++ firefox-61.0/gfx/skia/skia/src/jumper/SkJumper_stages.cpp	2018-06-20 09:23:36.831919894 +0200
@@ -686,7 +686,7 @@ SI F from_half(U16 h) {
 }
 
 SI U16 to_half(F f) {
-#if defined(JUMPER_IS_NEON) && defined(__aarch64__) && !defined(SK_BUILD_FOR_GOOGLE3)  // Temporary workaround for some Google3 builds.
+#if 0 && defined(__aarch64__) && !defined(SK_BUILD_FOR_GOOGLE3)  // Temporary workaround for some Google3 builds.
     return vcvt_f16_f32(f);
 
 #elif defined(JUMPER_IS_HSW) || defined(JUMPER_IS_AVX512)
diff -up firefox-68.0/gfx/skia/skia/include/private/SkHalf.h.old firefox-68.0/gfx/skia/skia/include/private/SkHalf.h
--- firefox-68.0/gfx/skia/skia/include/private/SkHalf.h.old	2019-07-09 14:20:12.527441789 +0200
+++ firefox-68.0/gfx/skia/skia/include/private/SkHalf.h	2019-07-09 14:20:31.744366018 +0200
@@ -40,7 +40,7 @@ static inline Sk4h SkFloatToHalf_finite_
 
 static inline Sk4f SkHalfToFloat_finite_ftz(uint64_t rgba) {
     Sk4h hs = Sk4h::Load(&rgba);
-#if !defined(SKNX_NO_SIMD) && defined(SK_CPU_ARM64)
+#if 0 // !defined(SKNX_NO_SIMD) && defined(SK_CPU_ARM64)
     float32x4_t fs;
     asm ("fcvtl %[fs].4s, %[hs].4h   \n"   // vcvt_f32_f16(...)
         : [fs] "=w" (fs)                   // =w: write-only NEON register
@@ -62,7 +62,7 @@ static inline Sk4f SkHalfToFloat_finite_
 }
 
 static inline Sk4h SkFloatToHalf_finite_ftz(const Sk4f& fs) {
-#if !defined(SKNX_NO_SIMD) && defined(SK_CPU_ARM64)
+#if 0 //!defined(SKNX_NO_SIMD) && defined(SK_CPU_ARM64)
     float32x4_t vec = fs.fVec;
     asm ("fcvtn %[vec].4h, %[vec].4s  \n"   // vcvt_f16_f32(vec)
         : [vec] "+w" (vec));                // +w: read-write NEON register