diff --git a/dom/media/MediaData.h b/dom/media/MediaData.h
index 4fe8dbc5f2..5c1684fc6c 100644
--- a/dom/media/MediaData.h
+++ b/dom/media/MediaData.h
@@ -106,8 +106,16 @@ public:
 
   AlignedBuffer& operator=(AlignedBuffer&& aOther)
   {
-    this->~AlignedBuffer();
-    new (this) AlignedBuffer(Move(aOther));
+    if (&aOther == this) {
+      return *this;
+    }
+    mData = aOther.mData;
+    mLength = aOther.mLength;
+    mBuffer = Move(aOther.mBuffer);
+    mCapacity = aOther.mCapacity;
+    aOther.mData = nullptr;
+    aOther.mLength = 0;
+    aOther.mCapacity = 0;
     return *this;
   }
 
diff --git a/gfx/ots/src/ots.h b/gfx/ots/src/ots.h
index 4d2be16898..26f3d85a41 100644
--- a/gfx/ots/src/ots.h
+++ b/gfx/ots/src/ots.h
@@ -87,8 +87,7 @@ class Buffer {
     if (n_bytes > 1024 * 1024 * 1024) {
       return OTS_FAILURE();
     }
-    if ((offset_ + n_bytes > length_) ||
-        (offset_ > length_ - n_bytes)) {
+    if (length_ < n_bytes || offset_ > length_ - n_bytes) {
       return OTS_FAILURE();
     }
     if (buf) {
@@ -99,7 +98,7 @@ class Buffer {
   }
 
   inline bool ReadU8(uint8_t *value) {
-    if (offset_ + 1 > length_) {
+    if (length_ < 1 || offset_ > length_ - 1) {
       return OTS_FAILURE();
     }
     *value = buffer_[offset_];
@@ -108,7 +107,7 @@ class Buffer {
   }
 
   bool ReadU16(uint16_t *value) {
-    if (offset_ + 2 > length_) {
+    if (length_ < 2 || offset_ > length_ - 2) {
       return OTS_FAILURE();
     }
     std::memcpy(value, buffer_ + offset_, sizeof(uint16_t));
@@ -122,7 +121,7 @@ class Buffer {
   }
 
   bool ReadU24(uint32_t *value) {
-    if (offset_ + 3 > length_) {
+    if (length_ < 3 || offset_ > length_ - 3) {
       return OTS_FAILURE();
     }
     *value = static_cast<uint32_t>(buffer_[offset_]) << 16 |
@@ -133,7 +132,7 @@ class Buffer {
   }
 
   bool ReadU32(uint32_t *value) {
-    if (offset_ + 4 > length_) {
+    if (length_ < 4 || offset_ > length_ - 4) {
       return OTS_FAILURE();
     }
     std::memcpy(value, buffer_ + offset_, sizeof(uint32_t));
@@ -147,7 +146,7 @@ class Buffer {
   }
 
   bool ReadR64(uint64_t *value) {
-    if (offset_ + 8 > length_) {
+    if (length_ < 8 || offset_ > length_ - 8) {
       return OTS_FAILURE();
     }
     std::memcpy(value, buffer_ + offset_, sizeof(uint64_t));
diff --git a/gfx/ots/src/stat.cc b/gfx/ots/src/stat.cc
index 9b78281093..4648dc6e8e 100644
--- a/gfx/ots/src/stat.cc
+++ b/gfx/ots/src/stat.cc
@@ -53,10 +53,6 @@ bool OpenTypeSTAT::Parse(const uint8_t* data, size_t length) {
     this->minorVersion = 2;
   }
 
-  if (this->designAxisSize < sizeof(AxisRecord)) {
-    return Drop("Invalid designAxisSize");
-  }
-
   size_t headerEnd = table.offset();
 
   if (this->designAxisCount == 0) {
@@ -65,9 +61,13 @@ bool OpenTypeSTAT::Parse(const uint8_t* data, size_t length) {
       this->designAxesOffset = 0;
     }
   } else {
+    if (this->designAxisSize < sizeof(AxisRecord)) {
+      return Drop("Invalid designAxisSize");
+    }
     if (this->designAxesOffset < headerEnd ||
-        size_t(this->designAxesOffset) +
-          size_t(this->designAxisCount) * size_t(this->designAxisSize) > length) {
+        size_t(this->designAxesOffset) > length ||
+        size_t(this->designAxisCount) * size_t(this->designAxisSize) >
+          length - size_t(this->designAxesOffset)) {
       return Drop("Invalid designAxesOffset");
     }
   }
diff --git a/js/src/jit/JitFrames.cpp b/js/src/jit/JitFrames.cpp
index 7ee9b24eab..65b0e8abfb 100644
--- a/js/src/jit/JitFrames.cpp
+++ b/js/src/jit/JitFrames.cpp
@@ -1049,31 +1049,31 @@ MarkThisAndArguments(JSTracer* trc, const JitFrameIterator& frame)
     if (!CalleeTokenIsFunction(layout->calleeToken()))
         return;
 
-    size_t nargs = layout->numActualArgs();
-    size_t nformals = 0;
-
     JSFunction* fun = CalleeTokenToFunction(layout->calleeToken());
-    if (!frame.isExitFrameLayout<LazyLinkExitFrameLayout>() &&
-        !fun->nonLazyScript()->mayReadFrameArgsDirectly())
-    {
-        nformals = fun->nargs();
-    }
+    size_t numFormals = fun->nargs();
+    size_t numArgs = Max(layout->numActualArgs(), numFormals);
+    size_t firstArg = 0;
 
-    size_t newTargetOffset = Max(nargs, fun->nargs());
+    if (!frame.isExitFrameLayout<LazyLinkExitFrameLayout>() &&
+        !fun->nonLazyScript()->mayReadFrameArgsDirectly()) {
+        firstArg = numFormals;
+    }
 
     Value* argv = layout->argv();
 
     // Trace |this|.
     TraceRoot(trc, argv, "ion-thisv");
 
-    // Trace actual arguments beyond the formals. Note + 1 for thisv.
-    for (size_t i = nformals + 1; i < nargs + 1; i++)
-        TraceRoot(trc, &argv[i], "ion-argv");
+    // Trace arguments. Note + 1 for thisv.
+    for (size_t i = firstArg; i < numArgs; i++) {
+        TraceRoot(trc, &argv[i + 1], "ion-argv");
+    }
 
     // Always mark the new.target from the frame. It's not in the snapshots.
     // +1 to pass |this|
-    if (CalleeTokenIsConstructing(layout->calleeToken()))
-        TraceRoot(trc, &argv[1 + newTargetOffset], "ion-newTarget");
+    if (CalleeTokenIsConstructing(layout->calleeToken())) {
+        TraceRoot(trc, &argv[1 + numArgs], "ion-newTarget");
+    }
 }
 
 #ifdef JS_NUNBOX32
diff --git a/netwerk/protocol/http/Http2Session.cpp b/netwerk/protocol/http/Http2Session.cpp
index 0bd9440034..d61e3c6e2f 100644
--- a/netwerk/protocol/http/Http2Session.cpp
+++ b/netwerk/protocol/http/Http2Session.cpp
@@ -90,6 +90,7 @@ Http2Session::Http2Session(nsISocketTransport *aSocketTransport, uint32_t versio
   , mClosed(false)
   , mCleanShutdown(false)
   , mTLSProfileConfirmed(false)
+  , mAggregatedHeaderSize(0)
   , mGoAwayReason(NO_HTTP_ERROR)
   , mClientGoAwayReason(UNASSIGNED)
   , mPeerGoAwayReason(UNASSIGNED)
@@ -1262,6 +1263,13 @@ Http2Session::RecvHeaders(Http2Session *self)
     RETURN_SESSION_ERROR(self, PROTOCOL_ERROR);
   }
 
+  uint32_t frameSize = self->mInputFrameDataSize - paddingControlBytes -
+                       priorityLen - paddingLength;
+  if (self->mAggregatedHeaderSize + frameSize >
+      gHttpHandler->MaxHttpResponseHeaderSize()) {
+    LOG(("Http2Session %p header exceeds the limit\n", self));
+    RETURN_SESSION_ERROR(self, PROTOCOL_ERROR);
+  }
   if (!self->mInputFrameDataStream) {
     // Cannot find stream. We can continue the session, but we need to
     // uncompress the header block to maintain the correct compression context
@@ -1274,7 +1282,7 @@ Http2Session::RecvHeaders(Http2Session *self)
       self->GenerateRstStream(PROTOCOL_ERROR, self->mInputFrameID);
 
     self->mDecompressBuffer.Append(&self->mInputFrameBuffer[kFrameHeaderBytes + paddingControlBytes + priorityLen],
-                                   self->mInputFrameDataSize - paddingControlBytes - priorityLen - paddingLength);
+                                   frameSize);
 
     if (self->mInputFrameFlags & kFlag_END_HEADERS) {
       rv = self->UncompressAndDiscard(false);
@@ -1301,11 +1309,17 @@ Http2Session::RecvHeaders(Http2Session *self)
 
   // queue up any compression bytes
   self->mDecompressBuffer.Append(&self->mInputFrameBuffer[kFrameHeaderBytes + paddingControlBytes + priorityLen],
-                                 self->mInputFrameDataSize - paddingControlBytes - priorityLen - paddingLength);
+                                 frameSize);
 
   self->mInputFrameDataStream->UpdateTransportReadEvents(self->mInputFrameDataSize);
   self->mLastDataReadEpoch = self->mLastReadEpoch;
 
+  if (!isContinuation) {
+    self->mAggregatedHeaderSize = frameSize;
+  } else {
+    self->mAggregatedHeaderSize += frameSize;
+  }
+
   if (!endHeadersFlag) { // more are coming - don't process yet
     self->ResetDownstreamState();
     return NS_OK;
@@ -1613,6 +1627,15 @@ Http2Session::RecvPushPromise(Http2Session *self)
           self->mInputFrameDataSize));
     RETURN_SESSION_ERROR(self, PROTOCOL_ERROR);
   }
+  
+  uint32_t frameSize = self->mInputFrameDataSize - paddingControlBytes -
+                       promiseLen - paddingLength;
+
+  if (self->mAggregatedHeaderSize + frameSize >
+      gHttpHandler->MaxHttpResponseHeaderSize()) {
+    LOG(("Http2Session:RecvPushPromise %p header exceeds the limit\n", self));
+    RETURN_SESSION_ERROR(self, PROTOCOL_ERROR);
+  }
 
   LOG3(("Http2Session::RecvPushPromise %p ID 0x%X assoc ID 0x%X "
         "paddingLength %d padded %d\n",
@@ -1683,7 +1706,7 @@ Http2Session::RecvPushPromise(Http2Session *self)
     // Need to decompress the headers even though we aren't using them yet in
     // order to keep the compression context consistent for other frames
     self->mDecompressBuffer.Append(&self->mInputFrameBuffer[kFrameHeaderBytes + paddingControlBytes + promiseLen],
-                                   self->mInputFrameDataSize - paddingControlBytes - promiseLen - paddingLength);
+                                   frameSize);
     if (self->mInputFrameFlags & kFlag_END_PUSH_PROMISE) {
       rv = self->UncompressAndDiscard(true);
       if (NS_FAILED(rv)) {
@@ -1697,7 +1720,13 @@ Http2Session::RecvPushPromise(Http2Session *self)
   }
 
   self->mDecompressBuffer.Append(&self->mInputFrameBuffer[kFrameHeaderBytes + paddingControlBytes + promiseLen],
-                                 self->mInputFrameDataSize - paddingControlBytes - promiseLen - paddingLength);
+                                 frameSize);
+
+  if (self->mInputFrameType != FRAME_TYPE_CONTINUATION) {
+    self->mAggregatedHeaderSize = frameSize;
+  } else {
+    self->mAggregatedHeaderSize += frameSize;
+  }
 
   if (!(self->mInputFrameFlags & kFlag_END_PUSH_PROMISE)) {
     LOG3(("Http2Session::RecvPushPromise not finishing processing for multi-frame push\n"));
diff --git a/netwerk/protocol/http/Http2Session.h b/netwerk/protocol/http/Http2Session.h
index 9d6b8c8611..355813f59e 100644
--- a/netwerk/protocol/http/Http2Session.h
+++ b/netwerk/protocol/http/Http2Session.h
@@ -483,6 +483,9 @@ private:
   // to make sure streams aren't shared across sessions.
   uint64_t        mSerial;
 
+  // Aggregate size of continued headers (pushed and pulled)
+  uint32_t        mAggregatedHeaderSize;
+
   // If push is disabled, we want to be able to send PROTOCOL_ERRORs if we
   // receive a PUSH_PROMISE, but we have to wait for the SETTINGS ACK before
   // we can actually tell the other end to go away. These help us keep track
diff --git a/xpcom/io/nsLocalFileWin.cpp b/xpcom/io/nsLocalFileWin.cpp
index 8b063802ed..0b9b8f8ded 100644
--- a/xpcom/io/nsLocalFileWin.cpp
+++ b/xpcom/io/nsLocalFileWin.cpp
@@ -3095,7 +3095,8 @@ nsLocalFile::IsExecutable(bool* aResult)
       "wsc",
       "wsf",
       "wsh",
-      "xll"          // MS Excel dynamic link library
+      "xll",         // MS Excel dynamic link library
+      "xrm-ms"
     };
     nsDependentSubstring ext = Substring(path, dotIdx + 1);
     for (size_t i = 0; i < ArrayLength(executableExts); ++i) {