--- a/browser/extensions/webcompat-reporter/locales/en-US/webcompat.properties
+++ b/browser/extensions/webcompat-reporter/locales/en-US/webcompat.properties
@@ -1,2 +1,10 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# LOCALIZATION NOTE(wc-reporter.label): This string will be used in the
+# Firefox menu panel below its button. Localized length should be considered.
 wc-reporter.label=Report Site Issue
+# LOCALIZATION NOTE(wc-reporter.tooltip): A site compatibility issue is
+# a website bug that exists in one browser (Firefox), but not another.
 wc-reporter.tooltip=Report a site compatibility issue

--- a/browser/extensions/webcompat-reporter/locales/jar.mn
+++ b/browser/extensions/webcompat-reporter/locales/jar.mn
@@ -1,8 +1,8 @@
 #filter substitution
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 [features/webcompat-reporter@mozilla.org] @AB_CD@.jar:
 % locale webcompat-reporter @AB_CD@ %locale/@AB_CD@/
-  locale/@AB_CD@/                    (en-US/*)
+  locale/@AB_CD@/webcompat.properties (%webcompat.properties)

--- a/browser/extensions/webcompat-reporter/moz.build
+++ b/browser/extensions/webcompat-reporter/moz.build
@@ -2,17 +2,17 @@
 # vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 DEFINES['MOZ_APP_VERSION'] = CONFIG['MOZ_APP_VERSION']
 DEFINES['MOZ_APP_MAXVERSION'] = CONFIG['MOZ_APP_MAXVERSION']
 
-DIRS += ['locale']
+DIRS += ['locales']
 
 FINAL_TARGET_FILES.features['webcompat-reporter@mozilla.org'] += [
   'bootstrap.js'
 ]
 
 FINAL_TARGET_PP_FILES.features['webcompat-reporter@mozilla.org'] += [
   'install.rdf.in'
 ]

--- a/browser/locales/Makefile.in
+++ b/browser/locales/Makefile.in
@@ -102,17 +102,17 @@ ifndef RELEASE_OR_BETA
 	@$(MAKE) -C ../extensions/presentation/locale AB_CD=$* XPI_NAME=locale-$*
 endif
 	@$(MAKE) -C ../../intl/locales AB_CD=$* XPI_NAME=locale-$*
 	@$(MAKE) -C ../../devtools/client/locales AB_CD=$* XPI_NAME=locale-$* XPI_ROOT_APPID='$(XPI_ROOT_APPID)'
 	@$(MAKE) -B searchplugins AB_CD=$* XPI_NAME=locale-$*
 	@$(MAKE) libs AB_CD=$* XPI_NAME=locale-$* PREF_DIR=$(PREF_DIR)
 	@$(MAKE) -C $(DEPTH)/$(MOZ_BRANDING_DIRECTORY)/locales AB_CD=$* XPI_NAME=locale-$*
 ifdef NIGHTLY_BUILD
-	@$(MAKE) -C ../extensions/webcompat-reporter/locale AB_CD=$* XPI_NAME=locale-$*
+	@$(MAKE) -C ../extensions/webcompat-reporter/locales AB_CD=$* XPI_NAME=locale-$*
 endif
 
 repackage-win32-installer: WIN32_INSTALLER_OUT=$(ABS_DIST)/$(PKG_INST_PATH)$(PKG_INST_BASENAME).exe
 repackage-win32-installer: $(call ESCAPE_WILDCARD,$(WIN32_INSTALLER_IN)) $(SUBMAKEFILES) libs-$(AB_CD)
 	@echo 'Repackaging $(WIN32_INSTALLER_IN) into $(WIN32_INSTALLER_OUT).'
 	$(MAKE) -C $(DEPTH)/$(MOZ_BRANDING_DIRECTORY) export
 	$(MAKE) -C ../installer/windows CONFIG_DIR=l10ngen l10ngen/setup.exe l10ngen/7zSD.sfx
 	$(MAKE) repackage-zip \

--- a/browser/locales/filter.py
+++ b/browser/locales/filter.py
@@ -3,16 +3,17 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 def test(mod, path, entity = None):
   import re
   # ignore anything but Firefox
   if mod not in ("netwerk", "dom", "toolkit", "security/manager",
                  "devtools/client", "devtools/shared",
                  "browser",
+                 "browser/extensions/webcompat-reporter",
                  "extensions/spellcheck",
                  "other-licenses/branding/firefox",
                  "browser/branding/official",
                  "services/sync"):
     return "ignore"
   if mod not in ("browser", "extensions/spellcheck"):
     # we only have exceptions for browser and extensions/spellcheck
     return "error"

--- a/browser/locales/l10n.ini
+++ b/browser/locales/l10n.ini
@@ -6,16 +6,17 @@
 depth = ../..
 all = browser/locales/all-locales
 
 [compare]
 dirs = browser
      other-licenses/branding/firefox
      browser/branding/official
      devtools/client
+     browser/extensions/webcompat-reporter
 
 [includes]
 # non-central apps might want to use %(topsrcdir)s here, or other vars
 # RFE: that needs to be supported by compare-locales, too, though
 toolkit = toolkit/locales/l10n.ini
 services_sync = services/sync/locales/l10n.ini
 
 [extras]