diff --git a/config/config.mk b/config/config.mk
index 871579d4eba2..f8b3af0ae677 100644
--- a/config/config.mk
+++ b/config/config.mk
@@ -179,12 +179,6 @@ endif
 
 TAR_CREATE_FLAGS = -chf
 
-#
-# Personal makefile customizations go in these optional make include files.
-#
-MY_CONFIG	:= $(DEPTH)/config/myconfig.mk
-MY_RULES	:= $(DEPTH)/config/myrules.mk
-
 #
 # Default command macros; can be overridden in <arch>.mk.
 #
@@ -296,11 +290,7 @@ endif
 endif
 endif
 
-#
-# Include any personal overrides the user might think are needed.
-#
 -include $(topsrcdir)/$(MOZ_BUILD_APP)/app-config.mk
--include $(MY_CONFIG)
 
 ######################################################################
 
diff --git a/config/rules.mk b/config/rules.mk
index cb750da4e44a..a3977bf271a3 100644
--- a/config/rules.mk
+++ b/config/rules.mk
@@ -1344,19 +1344,6 @@ endif
 #############################################################################
 
 -include $(topsrcdir)/$(MOZ_BUILD_APP)/app-rules.mk
--include $(MY_RULES)
-
-#
-# Generate Emacs tags in a file named TAGS if ETAGS was set in $(MY_CONFIG)
-# or in $(MY_RULES)
-#
-ifdef ETAGS
-ifneq ($(CSRCS)$(CPPSRCS)$(HEADERS),)
-all:: TAGS
-TAGS:: $(CSRCS) $(CPPSRCS) $(HEADERS)
-	$(ETAGS) $(CSRCS) $(CPPSRCS) $(HEADERS)
-endif
-endif
 
 ################################################################################
 # Install/copy rules