diff -Nur mozilla-beta.orig/config/baseconfig.mk mozilla-beta/config/baseconfig.mk
--- mozilla-beta.orig/config/baseconfig.mk  2014-01-14 20:37:43.142280922 +0100
+++ mozilla-beta/config/baseconfig.mk 2014-01-14 20:38:40.184259453 +0100
@@ -1,7 +1,7 @@
-includedir := $(includedir)/$(MOZ_APP_NAME)-$(MOZ_APP_VERSION)
-idldir = $(datadir)/idl/$(MOZ_APP_NAME)-$(MOZ_APP_VERSION)
-installdir = $(libdir)/$(MOZ_APP_NAME)-$(MOZ_APP_VERSION)
-sdkdir = $(libdir)/$(MOZ_APP_NAME)-devel-$(MOZ_APP_VERSION)
+includedir := $(includedir)/$(MOZ_APP_NAME)
+idldir = $(datadir)/idl/$(MOZ_APP_NAME)
+installdir = $(libdir)/$(MOZ_APP_NAME)
+sdkdir = $(libdir)/$(MOZ_APP_NAME)-devel
 DIST = $(DEPTH)/dist
 
 # We do magic with OBJ_SUFFIX in config.mk, the following ensures we don't
diff -Nur mozilla-beta.orig/js/src/config/baseconfig.mk mozilla-beta/js/src/config/baseconfig.mk
--- mozilla-beta.orig/js/src/config/baseconfig.mk 2014-01-14 20:37:43.732301391 +0100
+++ mozilla-beta/js/src/config/baseconfig.mk  2014-01-14 20:39:12.769389327 +0100
@@ -1,5 +1,5 @@
-installdir = $(libdir)/$(MOZ_APP_NAME)-$(MOZ_APP_VERSION)
-sdkdir = $(libdir)/$(MOZ_APP_NAME)-devel-$(MOZ_APP_VERSION)
+installdir = $(libdir)/$(MOZ_APP_NAME)
+sdkdir = $(libdir)/$(MOZ_APP_NAME)-devel
 
 ifneq (,$(filter /%,$(TOP_DIST)))
 DIST = $(TOP_DIST)