diff --git a/browser/extensions/moz.build b/browser/extensions/moz.build
--- a/browser/extensions/moz.build
+++ b/browser/extensions/moz.build
@@ -1,14 +1,11 @@
 # -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
 # 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/.
 
 DIRS += [
-    "doh-rollout",
     "formautofill",
     "screenshots",
-    "webcompat",
-    "report-site-issue",
     "pictureinpicture",
 ]
diff --git a/browser/locales/Makefile.in b/browser/locales/Makefile.in
--- a/browser/locales/Makefile.in
+++ b/browser/locales/Makefile.in
@@ -56,17 +56,16 @@ l10n-%:
 	$(if $(filter en-US,$(AB_CD)),, @$(MAKE) merge-$*)
 	$(NSINSTALL) -D $(DIST)/install
 	@$(MAKE) -C ../../toolkit/locales l10n-$* XPI_ROOT_APPID='$(XPI_ROOT_APPID)'
 	@$(MAKE) -C ../../services/sync/locales AB_CD=$* XPI_NAME=locale-$*
 	@$(MAKE) -C ../../extensions/spellcheck/locales AB_CD=$* XPI_NAME=locale-$*
 ifneq (,$(wildcard ../extensions/formautofill/locales))
 	@$(MAKE) -C ../extensions/formautofill/locales AB_CD=$* XPI_NAME=locale-$*
 endif
-	@$(MAKE) -C ../extensions/report-site-issue/locales AB_CD=$* XPI_NAME=locale-$*
 	@$(MAKE) -C ../../devtools/client/locales AB_CD=$* XPI_NAME=locale-$* XPI_ROOT_APPID='$(XPI_ROOT_APPID)'
 	@$(MAKE) -C ../../devtools/startup/locales AB_CD=$* XPI_NAME=locale-$* XPI_ROOT_APPID='$(XPI_ROOT_APPID)'
 	@$(MAKE) l10n AB_CD=$* XPI_NAME=locale-$* PREF_DIR=$(PREF_DIR)
 	@$(MAKE) multilocale.txt-$* AB_CD=$* XPI_NAME=locale-$*
 	@$(MAKE) -C $(DEPTH)/$(MOZ_BRANDING_DIRECTORY)/locales AB_CD=$* XPI_NAME=locale-$*
 
 chrome-%: AB_CD=$*
 chrome-%: IS_LANGUAGE_REPACK=1
@@ -77,17 +76,16 @@ chrome-%:
 	@$(MAKE) -C ../../extensions/spellcheck/locales chrome AB_CD=$*
 ifneq (,$(wildcard ../extensions/formautofill/locales))
 	@$(MAKE) -C ../extensions/formautofill/locales chrome AB_CD=$*
 endif
 	@$(MAKE) -C ../../devtools/client/locales chrome AB_CD=$*
 	@$(MAKE) -C ../../devtools/startup/locales chrome AB_CD=$*
 	@$(MAKE) chrome AB_CD=$*
 	@$(MAKE) -C $(DEPTH)/$(MOZ_BRANDING_DIRECTORY)/locales chrome AB_CD=$*
-	@$(MAKE) -C ../extensions/report-site-issue/locales chrome AB_CD=$*
 
 package-win32-installer: $(SUBMAKEFILES)
 	$(MAKE) -C ../installer/windows CONFIG_DIR=l10ngen ZIP_IN='$(ZIP_OUT)' installer
 
 langpack: langpack-$(AB_CD)
 
 # This is a generic target that will make a langpack, repack ZIP (+tarball)
 # builds, and repack an installer if applicable. It is called from the
diff --git a/browser/locales/filter.py b/browser/locales/filter.py
--- a/browser/locales/filter.py
+++ b/browser/locales/filter.py
@@ -15,17 +15,16 @@ def test(mod, path, entity=None):
         "toolkit",
         "security/manager",
         "devtools/client",
         "devtools/shared",
         "devtools/startup",
         "browser",
         "browser/extensions/formautofill",
         "browser/extensions/fxmonitor",
-        "browser/extensions/report-site-issue",
         "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
diff --git a/browser/locales/l10n.ini b/browser/locales/l10n.ini
--- a/browser/locales/l10n.ini
+++ b/browser/locales/l10n.ini
@@ -9,17 +9,16 @@ all = browser/locales/all-locales
 [compare]
 dirs = browser
      other-licenses/branding/firefox
      browser/branding/official
      devtools/client
      devtools/startup
      browser/extensions/formautofill
      browser/extensions/fxmonitor
-     browser/extensions/report-site-issue
 
 [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]
diff --git a/browser/locales/l10n.toml b/browser/locales/l10n.toml
--- a/browser/locales/l10n.toml
+++ b/browser/locales/l10n.toml
@@ -130,20 +130,16 @@ locales = [
     reference = "browser/extensions/formautofill/locales/en-US/**"
     l10n = "{l}browser/extensions/formautofill/**"
 
 [[paths]]
     reference = "browser/extensions/fxmonitor/locales/en-US/**"
     l10n = "{l}browser/extensions/fxmonitor/**"
 
 [[paths]]
-    reference = "browser/extensions/report-site-issue/locales/en-US/**"
-    l10n = "{l}browser/extensions/report-site-issue/**"
-
-[[paths]]
     reference = "services/sync/locales/en-US/**"
     l10n = "{l}services/sync/**"
 
 
 [[includes]]
     path = "toolkit/locales/l10n.toml"
 
 [[includes]]