diff --git a/b2g/installer/Makefile.in b/b2g/installer/Makefile.in
index 191491c1a4d..6ff3769023a 100644
--- a/b2g/installer/Makefile.in
+++ b/b2g/installer/Makefile.in
@@ -25,12 +25,6 @@ ifdef MOZ_NO_DEBUG_RTL
 DEFINES += -DMOZ_PACKAGE_MSVC_DLLS=1
 DEFINES += -DMSVC_C_RUNTIME_DLL=$(MSVC_C_RUNTIME_DLL)
 DEFINES += -DMSVC_CXX_RUNTIME_DLL=$(MSVC_CXX_RUNTIME_DLL)
-ifdef MSVC_APPCRT_DLL
-DEFINES += -DMSVC_APPCRT_DLL=$(MSVC_APPCRT_DLL)
-endif
-ifdef MSVC_DESKTOPCRT_DLL
-DEFINES += -DMSVC_DESKTOPCRT_DLL=$(MSVC_DESKTOPCRT_DLL)
-endif
 endif
 endif
 
diff --git a/b2g/installer/package-manifest.in b/b2g/installer/package-manifest.in
index eadd9f626ee..156360e7f8e 100644
--- a/b2g/installer/package-manifest.in
+++ b/b2g/installer/package-manifest.in
@@ -74,12 +74,6 @@
 #if MOZ_PACKAGE_MSVC_DLLS
 @BINPATH@/@MSVC_C_RUNTIME_DLL@
 @BINPATH@/@MSVC_CXX_RUNTIME_DLL@
-#ifdef MSVC_APPCRT_DLL
-@BINPATH@/@MSVC_APPCRT_DLL@
-#endif
-#ifdef MSVC_DESKTOPCRT_DLL
-@BINPATH@/@MSVC_DESKTOPCRT_DLL@
-#endif
 #endif
 #endif
 #ifdef MOZ_SHARED_MOZGLUE
diff --git a/browser/installer/Makefile.in b/browser/installer/Makefile.in
index 385da97ca8b..c3d3053a49e 100644
--- a/browser/installer/Makefile.in
+++ b/browser/installer/Makefile.in
@@ -73,12 +73,6 @@ ifdef MOZ_NO_DEBUG_RTL
 DEFINES += -DMOZ_PACKAGE_MSVC_DLLS=1
 DEFINES += -DMSVC_C_RUNTIME_DLL=$(MSVC_C_RUNTIME_DLL)
 DEFINES += -DMSVC_CXX_RUNTIME_DLL=$(MSVC_CXX_RUNTIME_DLL)
-ifdef MSVC_APPCRT_DLL
-DEFINES += -DMSVC_APPCRT_DLL=$(MSVC_APPCRT_DLL)
-endif
-ifdef MSVC_DESKTOPCRT_DLL
-DEFINES += -DMSVC_DESKTOPCRT_DLL=$(MSVC_DESKTOPCRT_DLL)
-endif
 endif
 endif
 
diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
index e2f7c862b2a..bea44ec3069 100644
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -100,12 +100,6 @@
 #if MOZ_PACKAGE_MSVC_DLLS
 @BINPATH@/@MSVC_C_RUNTIME_DLL@
 @BINPATH@/@MSVC_CXX_RUNTIME_DLL@
-#ifdef MSVC_APPCRT_DLL
-@BINPATH@/@MSVC_APPCRT_DLL@
-#endif
-#ifdef MSVC_DESKTOPCRT_DLL
-@BINPATH@/@MSVC_DESKTOPCRT_DLL@
-#endif
 #endif
 #endif
 #ifndef MOZ_NATIVE_ICU
diff --git a/build/win32/Makefile.in b/build/win32/Makefile.in
index 664eca5257a..915c693db2d 100644
--- a/build/win32/Makefile.in
+++ b/build/win32/Makefile.in
@@ -9,8 +9,6 @@ ifdef WIN32_REDIST_DIR
 REDIST_FILES = \
   $(MSVC_C_RUNTIME_DLL) \
   $(MSVC_CXX_RUNTIME_DLL) \
-  $(MSVC_APPCRT_DLL) \
-  $(MSVC_DESKTOPCRT_DLL) \
   $(NULL)
 
 libs-preqs = \
diff --git a/configure.in b/configure.in
index 85fcf58a385..cb964c73e5c 100644
--- a/configure.in
+++ b/configure.in
@@ -496,24 +496,6 @@ case "$target" in
             MSVS_VERSION=2013
             MSVC_C_RUNTIME_DLL=msvcr120.dll
             MSVC_CXX_RUNTIME_DLL=msvcp120.dll
-        elif test "$_CC_MAJOR_VERSION" = "19"; then
-            _CC_SUITE=14
-            MSVS_VERSION=2015
-            MSVC_C_RUNTIME_DLL=vcruntime140.dll
-            MSVC_CXX_RUNTIME_DLL=msvcp140.dll
-            MSVC_APPCRT_DLL=appcrt140.dll
-            MSVC_DESKTOPCRT_DLL=desktopcrt140.dll
-
-            # -Wv:18 disables all warnings introduced after VS2013
-            # See http://blogs.msdn.com/b/vcblog/archive/2014/11/12/improvements-to-warnings-in-the-c-compiler.aspx
-            CFLAGS="$CFLAGS -Wv:18"
-            CXXFLAGS="$CXXFLAGS -Wv:18"
-
-            # https://connect.microsoft.com/VisualStudio/feedback/details/888527/warnings-on-dbghelp-h
-            # for dbghelp.h, imagehlp.h, and shobj.h
-            # C4091: 'typedef ': ignored on left of '' when no variable is declared
-            CFLAGS="$CFLAGS -wd4091"
-            CXXFLAGS="$CXXFLAGS -wd4091"
         else
             AC_MSG_ERROR([This version (${_CC_MAJOR_VERSION}.${_CC_MINOR_VERSION}.${_CC_BUILD_VERSION}) of the MSVC compiler is unsupported.
 You must install Visual C++ 2013 Update 3 or newer in order to build.
@@ -522,8 +504,6 @@ See https://developer.mozilla.org/en/Windows_Build_Prerequisites.])
         AC_SUBST(MSVS_VERSION)
         AC_SUBST(MSVC_C_RUNTIME_DLL)
         AC_SUBST(MSVC_CXX_RUNTIME_DLL)
-        AC_SUBST(MSVC_APPCRT_DLL)
-        AC_SUBST(MSVC_DESKTOPCRT_DLL)
 
         # Disable SEH on clang-cl because it doesn't implement them yet.
         if test -z "$CLANG_CL"; then
diff --git a/js/src/configure.in b/js/src/configure.in
index 8ceb1e005a7..cfa5969ef75 100644
--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -419,13 +419,6 @@ case "$target" in
 
         if test "$_CC_MAJOR_VERSION" = "18"; then
             _CC_SUITE=12
-        elif test "$_CC_MAJOR_VERSION" = "19"; then
-            _CC_SUITE=14
-
-            # -Wv:18 disables all warnings introduced after VS2013
-            # See http://blogs.msdn.com/b/vcblog/archive/2014/11/12/improvements-to-warnings-in-the-c-compiler.aspx
-            CFLAGS="$CFLAGS -Wv:18"
-            CXXFLAGS="$CXXFLAGS -Wv:18"
         else
             AC_MSG_ERROR([This version ($CC_VERSION) of the MSVC compiler is unsupported. See https://developer.mozilla.org/en/Windows_Build_Prerequisites.])
         fi
diff --git a/toolkit/mozapps/installer/upload-files.mk b/toolkit/mozapps/installer/upload-files.mk
index c6d1d320ffa..4adda194ed7 100644
--- a/toolkit/mozapps/installer/upload-files.mk
+++ b/toolkit/mozapps/installer/upload-files.mk
@@ -66,13 +66,9 @@ JSSHELL_BINS  = \
   $(DIST)/bin/$(DLL_PREFIX)mozglue$(DLL_SUFFIX) \
   $(NULL)
 ifndef MOZ_NATIVE_NSPR
-JSSHELL_BINS += $(DIST)/bin/$(MSVC_C_RUNTIME_DLL)
-JSSHELL_BINS += $(DIST)/bin/$(MSVC_CXX_RUNTIME_DLL)
-ifdef MSVC_APPCRT_DLL
-JSSHELL_BINS += $(DIST)/bin/$(MSVC_APPCRT_DLL)
-endif
-ifdef MSVC_DESKTOPCRT_DLL
-JSSHELL_BINS += $(DIST)/bin/$(MSVC_DESKTOPCRT_DLL)
+ifeq ($(_MSC_VER),1800)
+JSSHELL_BINS += $(DIST)/bin/msvcr120.dll
+JSSHELL_BINS += $(DIST)/bin/msvcp120.dll
 endif
 ifdef MOZ_FOLD_LIBS
 JSSHELL_BINS += $(DIST)/bin/$(DLL_PREFIX)nss3$(DLL_SUFFIX)