Users on 64-bit { -brand-name-windows } who download { -brand-name-firefox } can get our 64-bit version by default. That means you get a more secure version of { -brand-name-firefox }.
Gall defnyddwyr ar { -brand-name-windows } 64-bit sy'n llwytho { -brand-name-firefox } i lawr gael ein fersiwn 64-did yn ragosodedig. Mae hynny'n golygu eich bod chi'n cael fersiwn mwy diogel o { -brand-name-firefox }.