diff --git a/community/seamonkey/PKGBUILD b/community/seamonkey/PKGBUILD
index fd23783f1..424814058 100644
--- a/community/seamonkey/PKGBUILD
+++ b/community/seamonkey/PKGBUILD
@@ -3,7 +3,6 @@
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
 #  - mozconfig changes
 #  - patch to fix neon usage
-#  - patch to fix v7 FTBFS in js
 
 highmem=1
 
@@ -24,12 +23,10 @@ optdepends=('networkmanager: Location detection via available WiFi networks'
 url="https://www.seamonkey-project.org/"
 source=("https://archive.mozilla.org/pub/seamonkey/releases/$pkgver/source/seamonkey-$pkgver.source.tar.xz"
         "mozconfig"
-        "xulrunner-27.0-build-arm.patch"
-        "bug-1163171.patch")
+        "xulrunner-27.0-build-arm.patch")
 sha256sums=('a1a694219d01db24b5241d1afa785599fe6998a58b03d1b51c4b51995058098e'
             '2b1404af0c6db2602bdf6449a936d04fbb6e97299addd5e21c55b0ceff43d891'
-            'bc83b8a51c81a401da2fbe1f7cd0843248c32607d3a51119585df074d797922e'
-            '6917d93f905af5a068e2daa598d8f64aacb47c69fc4a9e5263a583857abb7e29')
+            'bc83b8a51c81a401da2fbe1f7cd0843248c32607d3a51119585df074d797922e')
 install="$pkgname.install"
 options=(!lto)
 
@@ -64,7 +61,6 @@ EOF
   echo "ac_add_options --disable-elf-hack" >> .mozconfig
   LDFLAGS+=" -Wl,--no-keep-memory -Wl,--reduce-memory-overheads"
   patch -p2 -i "${srcdir}"/xulrunner-27.0-build-arm.patch
-  patch -p1 -i "${srcdir}"/bug-1163171.patch
 }
 
 build() {
diff --git a/community/seamonkey/bug-1163171.patch b/community/seamonkey/bug-1163171.patch
deleted file mode 100644
index b44953e06..000000000
--- a/community/seamonkey/bug-1163171.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-# HG changeset patch
-# User Nathan Froyd <froydnj@gmail.com>
-
-Bug 1163171 - part 5 - remove arm-specific hacks in typed array implementation; r=lth
-
-clang does not have the specific problem that led to this hack in the
-first place, so we can remove the hack.  (The hack also causes issues
-with clang; it complains that you can't pass `volatile T*` into the
-intrinsics that we're using for atomic operations.)
-
-diff --git a/js/src/vm/TypedArrayObject-inl.h b/js/src/vm/TypedArrayObject-inl.h
-index e5b0253..9d9c0d5 100644
---- a/js/src/vm/TypedArrayObject-inl.h
-+++ b/js/src/vm/TypedArrayObject-inl.h
-@@ -258,17 +258,17 @@ class ElementSpecific
-         uint32_t count = source->length();
- 
-         if (source->type() == target->type()) {
-             Ops::podCopy(dest, source->viewDataEither().template cast<T*>(), count);
-             return true;
-         }
- 
-         // Inhibit unaligned accesses on ARM (bug 1097253, a compiler bug).
--#ifdef __arm__
-+#if defined(__arm__) && defined(__GNUC__) && !defined(__clang__)
- #  define JS_VOLATILE_ARM volatile
- #else
- #  define JS_VOLATILE_ARM
- #endif
- 
-         SharedMem<void*> data = Ops::extract(source);
-         switch (source->type()) {
-           case Scalar::Int8: {
-