Write it down somewhere safe. Also the user name and password.

Use '''Setup Sync''' in the Firefox menu - hit the orange Firefox button.

*https://support.mozilla.org/kb/what-firefox-sync *https://support.mozilla.org/kb/how-do-i-set-up-firefox-sync *https://support.mozilla.org/kb/add-a-device-to-firefox-sync *https://support.mozilla.org/kb/how-do-i-manage-my-firefox-sync-account *https://support.mozilla.org/kb/how-do-i-choose-what-types-information-sync-firefo *https://support.mozilla.org/kb/firefox-sync-troubleshooting-and-tips