Since your device was lost or stolen, to keep your information safe, you should change your { -product-mozilla-account } password in your account settings. You should also look for information from your device manufacturer about erasing your data remotely.
Ers i'ch dyfais gael ei cholli neu ei dwyn, er mwyn cadw'ch manylion yn ddiogel, dylech newid eich cyfrinair { -product-mozilla-account } yng ngosodiadau eich cyfrif. Dylech hefyd edrych am wybodaeth gan wneuthurwr eich dyfais ynglŷn â dileu eich data o bell.