diff --git a/config/autoconf.mk.in b/config/autoconf.mk.in
index 0e949d0d25dd..7077b14a57a8 100644
--- a/config/autoconf.mk.in
+++ b/config/autoconf.mk.in
@@ -639,7 +639,6 @@ MOZILLA_OFFICIAL = @MOZILLA_OFFICIAL@
 # Win32 options
 MOZ_BROWSE_INFO	= @MOZ_BROWSE_INFO@
 MOZ_TOOLS_DIR	= @MOZ_TOOLS_DIR@
-MOZ_QUANTIFY	= @MOZ_QUANTIFY@
 MSMANIFEST_TOOL = @MSMANIFEST_TOOL@
 WIN32_REDIST_DIR = @WIN32_REDIST_DIR@
 MOZ_GLUE_LDFLAGS = @MOZ_GLUE_LDFLAGS@
diff --git a/config/config.mk b/config/config.mk
index 11fe77c5bfb7..325a94e336cd 100644
--- a/config/config.mk
+++ b/config/config.mk
@@ -221,17 +221,6 @@ OS_LDFLAGS += -DEBUG -OPT:REF
 endif
 endif
 
-ifdef MOZ_QUANTIFY
-# -FIXED:NO is needed for Quantify to work, but it increases the size
-# of executables, so only use it if building for Quantify.
-WIN32_EXE_LDFLAGS += -FIXED:NO
-
-# We need -OPT:NOICF to prevent identical methods from being merged together.
-# Otherwise, Quantify doesn't know which method was actually called when it's
-# showing you the profile.
-OS_LDFLAGS += -OPT:NOICF
-endif
-
 #
 # Handle trace-malloc in optimized builds.
 # No opt to give sane callstacks.
@@ -403,7 +392,6 @@ MY_RULES	:= $(DEPTH)/config/myrules.mk
 # Default command macros; can be overridden in <arch>.mk.
 #
 CCC = $(CXX)
-QUANTIFY = quantify $(QUANTIFYOPTIONS)
 XPIDL_LINK = $(PYTHON) $(LIBXUL_DIST)/sdk/bin/xpt.py link
 
 # Java macros
diff --git a/config/rules.mk b/config/rules.mk
index 3a6926d166f3..67144140de0b 100644
--- a/config/rules.mk
+++ b/config/rules.mk
@@ -954,16 +954,6 @@ else
 endif
 endif
 
-quantify: $(PROGRAM)
-ifeq ($(CPP_PROG_LINK),1)
-	$(QUANTIFY) $(CCC) -o $^.quantify $(CXXFLAGS) $(PROGOBJS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS)
-else
-	$(QUANTIFY) $(CC) -o $^.quantify $(CFLAGS) $(PROGOBJS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS)
-endif
-ifndef NO_DIST_INSTALL
-	$(INSTALL) $(IFLAGS2) $^.quantify $(FINAL_TARGET)
-endif
-
 ifdef DTRACE_PROBE_OBJ
 EXTRA_DEPS += $(DTRACE_PROBE_OBJ)
 OBJS += $(DTRACE_PROBE_OBJ)
diff --git a/configure.in b/configure.in
index 2974616486b8..18c556a53ee8 100644
--- a/configure.in
+++ b/configure.in
@@ -7571,14 +7571,6 @@ if test -n "$_ENABLE_CODESIGHS"; then
     fi
 fi
 
-dnl ========================================================
-dnl = Support for Quantify (Windows)
-dnl ========================================================
-MOZ_ARG_ENABLE_BOOL(quantify,
-[  --enable-quantify       Enable Quantify support (Windows only) ],
-    MOZ_QUANTIFY=1,
-    MOZ_QUANTIFY= )
-
 dnl ========================================================
 dnl = Enable Radio Interface for B2G (Gonk usually)
 dnl ========================================================
diff --git a/js/src/config/autoconf.mk.in b/js/src/config/autoconf.mk.in
index 0af49d2d802a..865c9dcf092c 100644
--- a/js/src/config/autoconf.mk.in
+++ b/js/src/config/autoconf.mk.in
@@ -309,7 +309,6 @@ MOZILLA_OFFICIAL = @MOZILLA_OFFICIAL@
 # Win32 options
 MOZ_BROWSE_INFO	= @MOZ_BROWSE_INFO@
 MOZ_TOOLS_DIR	= @MOZ_TOOLS_DIR@
-MOZ_QUANTIFY	= @MOZ_QUANTIFY@
 MSMANIFEST_TOOL = @MSMANIFEST_TOOL@
 MOZ_GLUE_LDFLAGS = @MOZ_GLUE_LDFLAGS@
 MOZ_GLUE_PROGRAM_LDFLAGS = @MOZ_GLUE_PROGRAM_LDFLAGS@
diff --git a/js/src/config/config.mk b/js/src/config/config.mk
index 11fe77c5bfb7..325a94e336cd 100644
--- a/js/src/config/config.mk
+++ b/js/src/config/config.mk
@@ -221,17 +221,6 @@ OS_LDFLAGS += -DEBUG -OPT:REF
 endif
 endif
 
-ifdef MOZ_QUANTIFY
-# -FIXED:NO is needed for Quantify to work, but it increases the size
-# of executables, so only use it if building for Quantify.
-WIN32_EXE_LDFLAGS += -FIXED:NO
-
-# We need -OPT:NOICF to prevent identical methods from being merged together.
-# Otherwise, Quantify doesn't know which method was actually called when it's
-# showing you the profile.
-OS_LDFLAGS += -OPT:NOICF
-endif
-
 #
 # Handle trace-malloc in optimized builds.
 # No opt to give sane callstacks.
@@ -403,7 +392,6 @@ MY_RULES	:= $(DEPTH)/config/myrules.mk
 # Default command macros; can be overridden in <arch>.mk.
 #
 CCC = $(CXX)
-QUANTIFY = quantify $(QUANTIFYOPTIONS)
 XPIDL_LINK = $(PYTHON) $(LIBXUL_DIST)/sdk/bin/xpt.py link
 
 # Java macros
diff --git a/js/src/config/rules.mk b/js/src/config/rules.mk
index 3a6926d166f3..67144140de0b 100644
--- a/js/src/config/rules.mk
+++ b/js/src/config/rules.mk
@@ -954,16 +954,6 @@ else
 endif
 endif
 
-quantify: $(PROGRAM)
-ifeq ($(CPP_PROG_LINK),1)
-	$(QUANTIFY) $(CCC) -o $^.quantify $(CXXFLAGS) $(PROGOBJS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS)
-else
-	$(QUANTIFY) $(CC) -o $^.quantify $(CFLAGS) $(PROGOBJS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS)
-endif
-ifndef NO_DIST_INSTALL
-	$(INSTALL) $(IFLAGS2) $^.quantify $(FINAL_TARGET)
-endif
-
 ifdef DTRACE_PROBE_OBJ
 EXTRA_DEPS += $(DTRACE_PROBE_OBJ)
 OBJS += $(DTRACE_PROBE_OBJ)
diff --git a/js/src/configure.in b/js/src/configure.in
index 500b94a0d79e..1140756a6727 100644
--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -4366,14 +4366,6 @@ dnl =
 dnl ========================================================
 MOZ_ARG_HEADER(Profiling and Instrumenting)
 
-dnl ========================================================
-dnl = Support for Quantify (Windows)
-dnl ========================================================
-MOZ_ARG_ENABLE_BOOL(quantify,
-[  --enable-quantify       Enable Quantify support (Windows only) ],
-    MOZ_QUANTIFY=1,
-    MOZ_QUANTIFY= )
-
 dnl ========================================================
 dnl = Support for demangling undefined symbols
 dnl ========================================================