I'm not sure what you are referring to with: ''will the firefox logo be gone when mozilla replaces it''. If this is about changing the name Firefox Account to Mozilla Account to reflect that this is not only about Firefox then this has nothing to do with the name and logo of the browser and even the URL stays the same (accounts.firefox''.''com). *https://support.mozilla.org/en-US/kb/firefox-accounts-renamed-mozilla-accounts