--- a/toolkit/locales/l10n.mk
+++ b/toolkit/locales/l10n.mk
@@ -115,16 +115,19 @@ repackage-zip:  libs-$(AB_CD)
 	-$(PERL) -pi.old -e "s/en-US/$(AB_CD)/g" $(JARLOG_DIR_AB_CD)/*.jar.log
 # call a hook for apps to put their uninstall helper.exe into the package
 	$(UNINSTALLER_PACKAGE_HOOK)
 # copy xpi-stage over, but not install.rdf and chrome.manifest,
 # those are just for language packs
 	cd $(DIST)/xpi-stage/locale-$(AB_CD) && \
 	  tar --exclude=install.rdf --exclude=chrome.manifest $(TAR_CREATE_FLAGS) - * | ( cd $(STAGEDIST) && tar -xf - )
 	mv $(STAGEDIST)/chrome/$(AB_CD).manifest $(STAGEDIST)/chrome/localized.manifest
+ifdef MOZ_WEBAPP_RUNTIME
+	mv $(STAGEDIST)/webapprt/chrome/$(AB_CD).manifest $(STAGEDIST)/webapprt/chrome/localized.manifest
+endif
 ifneq (en,$(AB))
 ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 	mv $(_ABS_DIST)/l10n-stage/$(MOZ_PKG_DIR)/$(_APPNAME)/Contents/Resources/en.lproj $(_ABS_DIST)/l10n-stage/$(MOZ_PKG_DIR)/$(_APPNAME)/Contents/Resources/$(AB).lproj
 endif
 endif
 	$(NSINSTALL) -D $(DIST)/l10n-stage/$(PKG_PATH)
 	cd $(DIST)/l10n-stage; \
 	  $(MAKE_PACKAGE)

--- a/toolkit/mozapps/installer/packager.mk
+++ b/toolkit/mozapps/installer/packager.mk
@@ -781,16 +781,20 @@ endif
 	  $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/components/components.manifest \
 	  $(patsubst %,$(DIST)/manifests/%/components,$(MOZ_NONLOCALIZED_PKG_LIST))
 	$(PYTHON) $(MOZILLA_DIR)/toolkit/mozapps/installer/link-manifests.py \
 	  $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/chrome/nonlocalized.manifest \
 	  $(patsubst %,$(DIST)/manifests/%/chrome,$(MOZ_NONLOCALIZED_PKG_LIST))
 	$(PYTHON) $(MOZILLA_DIR)/toolkit/mozapps/installer/link-manifests.py \
 	  $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/chrome/localized.manifest \
 	  $(patsubst %,$(DIST)/manifests/%/chrome,$(MOZ_LOCALIZED_PKG_LIST))
+ifdef MOZ_WEBAPP_RUNTIME
+	mv $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/webapprt/chrome/$(AB_CD).manifest $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/webapprt/chrome/localized.manifest
+	sed 's/$(AB_CD)/localized/' $(DIST)/bin/webapprt/chrome.manifest > $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/webapprt/chrome.manifest
+endif
 	printf "manifest components/interfaces.manifest\nmanifest components/components.manifest\nmanifest chrome/nonlocalized.manifest\nmanifest chrome/localized.manifest\n" > $(DIST)/$(MOZ_PKG_DIR)/$(_BINPATH)/chrome.manifest
 else # !MOZ_PKG_MANIFEST
 ifeq ($(MOZ_WIDGET_TOOLKIT),cocoa)
 ifndef STAGE_SDK
 	@cd $(DIST) && rsync -auv --copy-unsafe-links $(_APPNAME) $(MOZ_PKG_DIR)
 	@echo "Linking XPT files..."
 	@rm -rf $(DIST)/xpt
 	@$(NSINSTALL) -D $(DIST)/xpt