diff --git a/locales/cy/browser/browser/zen-welcome.ftl b/locales/cy/browser/browser/zen-welcome.ftl
index e3b5e3287..e6445f378 100644
--- a/locales/cy/browser/browser/zen-welcome.ftl
+++ b/locales/cy/browser/browser/zen-welcome.ftl
@@ -3,24 +3,24 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 zen-welcome-title-line1 = Croeso i
-zen-welcome-title-line2 = a calmer internet
-zen-welcome-import-title = A Fresh Start, Same Bookmarks
-zen-welcome-import-description-1 = Mae eich nodau tudalen, eich hanes, a'ch cyfrineiriau fel llwybr o friwsion bara trwy'r we - peidiwch â'u gadael ar ôl!
-zen-welcome-import-description-2 = Easily bring them over from another browser and pick up right where you left off..
+zen-welcome-title-line2 = rhyngrwyd llonyddach
+zen-welcome-import-title = Dechrau Newydd, Yr Un Nodau Tudalen
+zen-welcome-import-description-1 = Mae eich nodau tudalen, hanes a chyfrineiriau fel llwybr o friwsion ar draws y rhyngrwyd—peidiwch eu gadael ar eich hôl!
+zen-welcome-import-description-2 = Dewch â nhw drosodd yn hawdd o borwr arall a phara ymlaen o le roeddech chi.
 zen-welcome-import-button = Mewnforio nawr
-zen-welcome-set-default-browser = Set { -brand-short-name } as your default browser
-zen-welcome-dont-set-default-browser = DON’T set { -brand-short-name } as your default browser
-zen-welcome-initial-essentials-title = Your Key Tabs, Always Within Reach
-zen-welcome-initial-essentials-description-1 = Keep your most important tabs easily accessible and always at hand, no matter how many you open.
-zen-welcome-initial-essentials-description-2 = Essential tabs are always visible, no matter what workspace you are in.
-zen-welcome-workspace-colors-title = Your Workspaces, Your Colors
-zen-welcome-workspace-colors-description = Personalize your browser by giving each workspace its own unique color identity.
+zen-welcome-set-default-browser = Gosod { -brand-short-name } fel eich porwr arferol
+zen-welcome-dont-set-default-browser = PEIDIO gosod { -brand-short-name } fel eich porwr arferol
+zen-welcome-initial-essentials-title = Eich Tabiau Allweddol, Bob Tro o Fewn Gafael
+zen-welcome-initial-essentials-description-1 = Cadwch eich tabiau pwysicaf yn hawdd eu cyrraedd ac wrth law bob amser, faint bynnag rydych chi'n eu hagor.
+zen-welcome-initial-essentials-description-2 = Mae tabiau hanfodol bob amser yn weladwy, pa bynnag man gwaith rydych chi ynddo.
+zen-welcome-workspace-colors-title = Eich Mannau Gwaith, Eich Lliwiau
+zen-welcome-workspace-colors-description = Personolwch eich porwr trwy roi lliw unigryw i bob gweithle.
 zen-welcome-start-browsing-title =
-    All set?<br/>
-    Let’s get rolling!
-zen-welcome-start-browsing-description-1 = You’re all set up and ready to go. Click the button below to start browsing with { -brand-short-name }.
-zen-welcome-start-browsing = Dive in!
-zen-welcome-default-search-title = Your Default Search Engine
-zen-welcome-default-search-description = Choose your default search engine. You can always change it later!
-zen-welcome-skip-button = Skip
-zen-welcome-finished = Your Zen has been set up correctly!
+    Yn barod?<br/>
+    Ffwrdd â ni!
+zen-welcome-start-browsing-description-1 = Rydych chi wedi'ch paratoi ac yn barod i fynd. Cliciwch y botwm isod i ddechrau pori gyda { -brand-short-name }.
+zen-welcome-start-browsing = Ymlaen!
+zen-welcome-default-search-title = Eich Peiriant Chwilio Arferol
+zen-welcome-default-search-description = Dewiswch eich peiriant chwilio arferol. Gallwch chi ei newid yn nes ymlaen!
+zen-welcome-skip-button = Hepgor
+zen-welcome-finished = Mae eich Zen wedi'i osog yn gywir!