diff -up firefox-52.0/gfx/skia/skia/include/core/SkPreConfig.h.arm firefox-52.0/gfx/skia/skia/include/core/SkPreConfig.h
--- firefox-52.0/gfx/skia/skia/include/core/SkPreConfig.h.arm	2017-03-03 13:53:52.480754536 +0100
+++ firefox-52.0/gfx/skia/skia/include/core/SkPreConfig.h	2017-03-03 13:56:01.476018102 +0100
@@ -203,6 +203,10 @@
     #define SK_ARM_HAS_CRC32
 #endif
 
+#if defined(__aarch64__)
+    #undef SK_ARM_HAS_NEON
+#endif
+
 //////////////////////////////////////////////////////////////////////
 
 #if !defined(SKIA_IMPLEMENTATION)