1 files changed, 19 insertions, 2 deletions
diff --git a/l10n-cy/browser/browser/defaultBrowserNotification.ftl b/l10n-cy/browser/browser/defaultBrowserNotification.ftl
index 01b0aa8c6e..386d756311 100644
--- a/l10n-cy/browser/browser/defaultBrowserNotification.ftl
+++ b/l10n-cy/browser/browser/defaultBrowserNotification.ftl
@@ -5,8 +5,8 @@
 # The question portion of the following message should have the <strong> and </strong> tags surrounding it.
 default-browser-notification-message = <strong>Gosodwch { -brand-short-name } fel eich porwr rhagosodedig? </strong>Cewch bori'n gyflym, yn ddiogel ac yn breifat pryd bynnag y byddwch yn defnyddio'r we.
 default-browser-notification-button =
-    .label = Gosod fel y Rhagosodiad
-    .accesskey = R
+    .label = Gosod fel y rhagosodiad
+    .accesskey = r
 
 ## These strings are used for the default browser prompt. There are 2 variations
 ## depending on the operating system (Windows vs other). The checkbox label and
@@ -21,3 +21,20 @@ default-browser-prompt-message-alt = Cael cyflymder, diogelwch a phreifatrwydd b
 default-browser-prompt-button-primary-alt = Gosod fel y porwr ragosodedig
 default-browser-prompt-checkbox-not-again-label = Peidio â dangos y neges hon eto
 default-browser-prompt-button-secondary = Nid nawr
+
+## Strings for a Windows native guidance notification when the user is forced to
+## use Windows Settings to set the default browser. Instructions differ for
+## Windows 10 and 11.
+
+default-browser-guidance-notification-title = Cwblhau gwneud { -brand-short-name } eich rhagosodiad
+# Quoted text are keywords to look for in the Windows Settings app.
+default-browser-guidance-notification-body-instruction-win10 =
+    Cam 1: Ewch i Gosodiadau> Apiau rhagosodedig
+    Cam 2: Sgroliwch i lawr i "Porwr gwe"
+    Cam 3: Dewiswch a chlicio { -brand-short-name }
+# Quoted text are keywords to look for in the Windows Settings app.
+default-browser-guidance-notification-body-instruction-win11 =
+    Cam 1: Ewch i Gosodiadau> Apiau rhagosodedig
+    Cam 2: Dewiswch “Gosod y rhagosodiad” ar gyfer { -brand-short-name }
+default-browser-guidance-notification-info-page = Dangos i mi
+default-browser-guidance-notification-dismiss = Gorffen