Sync isn't designed as a permanent backup – it's just sharing what is saved locally. If you reset your password and your data isn't stored on at least one other device, you could lose all the information associated with the old password. That's why you'll want to install Firefox and use Sync on more than one device.
Man wachib'en ta ri Sync achi'el jun junelïk jikomal wachib'äl – xa xe jun rub'anikil richin nikomonïx ri ayakon. We natikirisaj chik ri ewan atzij chuqa' man eyakon ta ri taq atzij pa xa xe jun okisaxel, tikirel nisach ri etamab'äl ruximon ri' rik'in ri ojer ewan tzij. Ruma ri' toq k'o ta chi nayäk qa ri Firefox chuqa' nawokisaj ri Sync pa k'ïy taq okisaxel.