diff --git a/build/win32/mozconfig.vs2013-win64 b/build/win32/mozconfig.vs2013-win64
new file mode 100644
index 0000000000..0adf6cc05e
--- /dev/null
+++ b/build/win32/mozconfig.vs2013-win64
@@ -0,0 +1,28 @@
+_VSPATH="/c/tools/vs2013"
+export WIN32_REDIST_DIR=${_VSPATH}/VC/redist/x86/Microsoft.VC120.CRT
+
+## moz tools location for 64-bit builders ##
+export MOZ_TOOLS=C:/mozilla-build/moztools
+
+## includes: win8.1 sdk includes, winrt headers for metro, msvc std library, directx sdk for d3d9 ##
+export INCLUDE=/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/include/shared:/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/include/um:/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/include/winrt:/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/include/winrt/wrl:/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/include/winrt/wrl/wrappers:${_VSPATH}/vc/include:${_VSPATH}/vc/atlmfc/include:/c/tools/sdks/dx10/include
+
+## libs: win8.1 sdk x86 (32-bit) libs, msvc (32-bit) std library, msvc atl libs, directx sdk (32-bit) for d3d9  ##
+export LIBPATH=/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/Lib/winv6.3/um/x86:${_VSPATH}/vc/lib:${_VSPATH}/vc/atlmfc/lib:/c/tools/sdks/dx10/lib
+export LIB=/c/Program\ Files\ \(x86\)/Windows\ Kits/8.1/Lib/winv6.3/um/x86:${_VSPATH}/vc/lib:${_VSPATH}/vc/atlmfc/lib:/c/tools/sdks/dx10/lib
+
+## paths: win8.1 sdk x86 (32-bit) tools, msvc (64-bit compiling 32-bit) build toolchain, moz tools  ##
+export PATH="/c/Program Files (x86)/Windows Kits/8.1/bin/x86:${_VSPATH}/Common7/IDE:${_VSPATH}/VC/BIN/amd64_x86:${_VSPATH}/VC/BIN/amd64:${_VSPATH}/Common7/Tools:${_VSPATH}/VC/VCPackages:/c/mozilla-build/moztools:${PATH}"
+
+## WindowsSDKDir ##
+export WINDOWSSDKDIR="/c/Program Files (x86)/Windows Kits/8.1/"
+
+. $topsrcdir/build/mozconfig.vs-common
+
+mk_export_correct_style LIB
+mk_export_correct_style LIBPATH
+mk_export_correct_style PATH
+mk_export_correct_style INCLUDE
+mk_export_correct_style WIN32_REDIST_DIR
+
+mk_add_options "export MOZ_TOOLS=$MOZ_TOOLS"
diff --git a/mail/config/mozconfigs/win32/debug b/mail/config/mozconfigs/win32/debug
index 1cb1e305c2..1cadd8826f 100644
--- a/mail/config/mozconfigs/win32/debug
+++ b/mail/config/mozconfigs/win32/debug
@@ -16,7 +16,7 @@ export MOZ_DEBUG_SYMBOLS=1
 export MOZ_PACKAGE_JSSHELL=1
 
 if test "$PROCESSOR_ARCHITECTURE" = "AMD64" -o "$PROCESSOR_ARCHITEW6432" = "AMD64"; then
-  . $topsrcdir/build/win32/mozconfig.vs2010-win64
+  . $topsrcdir/build/win32/mozconfig.vs2013-win64
 else
   . $topsrcdir/build/win32/mozconfig.vs2010
 fi
diff --git a/mail/config/mozconfigs/win32/l10n-mozconfig b/mail/config/mozconfigs/win32/l10n-mozconfig
index 2795024f53..07f39bcf91 100644
--- a/mail/config/mozconfigs/win32/l10n-mozconfig
+++ b/mail/config/mozconfigs/win32/l10n-mozconfig
@@ -16,7 +16,7 @@ export MOZ_DEBUG_SYMBOLS=1
 export MOZILLA_OFFICIAL=1
 
 if test "$PROCESSOR_ARCHITECTURE" = "AMD64" -o "$PROCESSOR_ARCHITEW6432" = "AMD64"; then
-  . $topsrcdir/build/win32/mozconfig.vs2010-win64
+  . $topsrcdir/build/win32/mozconfig.vs2013-win64
 else
   . $topsrcdir/build/win32/mozconfig.vs2010
 fi
diff --git a/mail/config/mozconfigs/win32/nightly b/mail/config/mozconfigs/win32/nightly
index 31ddca2316..04dcf7852b 100644
--- a/mail/config/mozconfigs/win32/nightly
+++ b/mail/config/mozconfigs/win32/nightly
@@ -21,7 +21,7 @@ export MOZILLA_OFFICIAL=1
 export MOZ_PACKAGE_JSSHELL=1
 
 if test "$PROCESSOR_ARCHITECTURE" = "AMD64" -o "$PROCESSOR_ARCHITEW6432" = "AMD64"; then
-  . $topsrcdir/build/win32/mozconfig.vs2010-win64
+  . $topsrcdir/build/win32/mozconfig.vs2013-win64
 else
   . $topsrcdir/build/win32/mozconfig.vs2010
 fi
diff --git a/mail/config/mozconfigs/win32/release b/mail/config/mozconfigs/win32/release
index 9873267b68..72b9032a34 100644
--- a/mail/config/mozconfigs/win32/release
+++ b/mail/config/mozconfigs/win32/release
@@ -20,7 +20,7 @@ export MOZILLA_OFFICIAL=1
 export MOZ_PACKAGE_JSSHELL=1
 
 if test "$PROCESSOR_ARCHITECTURE" = "AMD64" -o "$PROCESSOR_ARCHITEW6432" = "AMD64"; then
-  . $topsrcdir/build/win32/mozconfig.vs2010-win64
+  . $topsrcdir/build/win32/mozconfig.vs2013-win64
 else
   . $topsrcdir/build/win32/mozconfig.vs2010
 fi
diff --git a/mail/config/mozconfigs/win64/debug b/mail/config/mozconfigs/win64/debug
index f53042e1b7..b28578a763 100644
--- a/mail/config/mozconfigs/win64/debug
+++ b/mail/config/mozconfigs/win64/debug
@@ -14,7 +14,7 @@ export MOZILLA_OFFICIAL=1
 # Package js shell
 export MOZ_PACKAGE_JSSHELL=1
 
-. $topsrcdir/build/win64/mozconfig.vs2010
+. $topsrcdir/build/win64/mozconfig.vs2013
 
 # Set up mapi includes (must be done after visual studio setup)
 export INCLUDE=$INCLUDE:/c/Office\ 2010\ Developer\ Resources/Outlook\ 2010\ MAPI\ Headers
diff --git a/mail/config/mozconfigs/win64/l10n-mozconfig b/mail/config/mozconfigs/win64/l10n-mozconfig
index 98c8052ddb..49a534e084 100644
--- a/mail/config/mozconfigs/win64/l10n-mozconfig
+++ b/mail/config/mozconfigs/win64/l10n-mozconfig
@@ -14,7 +14,7 @@ ac_add_options --enable-calendar
 # Needed to enable breakpad in application.ini
 export MOZILLA_OFFICIAL=1
 
-. $topsrcdir/build/win64/mozconfig.vs2010
+. $topsrcdir/build/win64/mozconfig.vs2013
 
 # Set up mapi includes (must be done after visual studio setup)
 export INCLUDE=$INCLUDE:/c/Office\ 2010\ Developer\ Resources/Outlook\ 2010\ MAPI\ Headers
diff --git a/mail/config/mozconfigs/win64/nightly b/mail/config/mozconfigs/win64/nightly
index a1b323da92..3140702af6 100644
--- a/mail/config/mozconfigs/win64/nightly
+++ b/mail/config/mozconfigs/win64/nightly
@@ -19,7 +19,7 @@ export MOZ_TELEMETRY_REPORTING=1
 # Package js shell
 export MOZ_PACKAGE_JSSHELL=1
 
-. $topsrcdir/build/win64/mozconfig.vs2010
+. $topsrcdir/build/win64/mozconfig.vs2013
 
 # Set up mapi includes (must be done after visual studio setup)
 export INCLUDE=$INCLUDE:/c/Office\ 2010\ Developer\ Resources/Outlook\ 2010\ MAPI\ Headers