--- 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", "devtools/shim",
                  "browser",
+                 "browser/extensions/formautofill",
                  "browser/extensions/onboarding",
                  "browser/extensions/webcompat-reporter",
                  "extensions/spellcheck",
                  "other-licenses/branding/firefox",
                  "browser/branding/official",
                  "services/sync"):
     return "ignore"
   if mod not in ("browser", "extensions/spellcheck"):

--- a/browser/locales/l10n.ini
+++ b/browser/locales/l10n.ini
@@ -7,16 +7,17 @@ depth = ../..
 all = browser/locales/all-locales
 
 [compare]
 dirs = browser
      other-licenses/branding/firefox
      browser/branding/official
      devtools/client
      devtools/shim
+     browser/extensions/formautofill
      browser/extensions/onboarding
      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

--- a/browser/locales/l10n.toml
+++ b/browser/locales/l10n.toml
@@ -115,16 +115,20 @@ locales = [
     reference = "browser/locales/en-US/**"
     l10n = "{l}browser/**"
 
 [[paths]]
     reference = "browser/branding/official/locales/en-US/**"
     l10n = "{l}browser/branding/official/**"
 
 [[paths]]
+    reference = "browser/extensions/formautofill/locales/en-US/**"
+    l10n = "{l}browser/extensions/formautofill/**"
+
+[[paths]]
     reference = "browser/extensions/onboarding/locales/en-US/**"
     l10n = "{l}browser/extensions/onboarding/**"
 
 [[paths]]
     reference = "browser/extensions/webcompat-reporter/locales/en-US/**"
     l10n = "{l}browser/extensions/webcompat-reporter/**"
 
 [[paths]]