Note that Sync is optional and you can skip this step and close the tab if you do not have other devices. You can find the full version of the current Firefox release (67.0.1) in all languages and all operating systems here: *https://www.mozilla.org/en-US/firefox/all/ *https://www.mozilla.org/en-US/firefox/67.0.1/releasenotes/ See also: *https://support.mozilla.org/en-US/kb/forum-response-recover-bookmarks-after-update You may have been switched to another profile if you lost personal data after updating. Firefox 67 and later can use a dedicated profile for each of the Firefox update channels and will lock the profile, so it can only be used by Firefox in a specific installation folder. For Release versions this profile would be a xxxxxxxx.default-release profile, profiles used in older Firefox versions usually used a xxxxxxxx.default profile (a refresh adds a time stamp). *https://support.mozilla.org/en-US/kb/dedicated-profiles-firefox-installation *https://blog.mozilla.org/2019/01/14/moving-to-a-profile-per-install-architecture/