diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index f3fc4cfbaf..02f5125411 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -1543,6 +1543,11 @@ Fodd bynnag, gall fod yn llai sefydlog. Llwythwch ein porwr Beta i gael profiad
     <string name="preferences_addresses_add_address">Ychwanegu cyfeiriad</string>
     <!-- Preference option for managing saved addresses -->
     <string name="preferences_addresses_manage_addresses">Rheoli cyfeiriadau</string>
+    <!-- Preference for saving and autofilling addresses -->
+    <string name="preferences_addresses_save_and_autofill_addresses">Cadw ac awtolanw cyfeiriadau</string>
+    <!-- Preference summary for saving and autofilling address data -->
+    <string name="preferences_addresses_save_and_autofill_addresses_summary">Cynhwyswch fanylion fel rhifau, cyfeiriadau e-bost a chludo</string>
+
     <!-- Title of the "Add card" screen -->
     <string name="credit_cards_add_card">Ychwanegu cerdyn</string>
     <!-- Title of the "Edit card" screen -->
@@ -1881,6 +1886,9 @@ Fodd bynnag, gall fod yn llai sefydlog. Llwythwch ein porwr Beta i gael profiad
     <!-- Clickable text for opening an external link for more information about Pocket. -->
     <string name="pocket_stories_feature_learn_more">Dysgu rhagor</string>
 
+    <!-- Text indicating that the Pocket story that also displays this text is a sponsored story by other 3rd party entity. -->
+    <string name="pocket_stories_sponsor_indication">Noddwyd</string>
+
     <!-- Snackbar message for enrolling in a Nimbus experiment from the secret settings when Studies preference is Off.-->
     <string name="experiments_snackbar">Galluogi telemetreg i anfon data.</string>
     <!-- Snackbar button text to navigate to telemetry settings.-->