Hi there, Refreshing Firefox resets the preferences. However, your bookmarks should have been preserved. Anyway, the data shouldn't be wiped out completely, but instead placed in a folder named ''Old Firefox Data''. See [[Restore bookmarks, passwords, and data from an old Firefox profile#w_copy-files-between-profile-folders|this article on how to restore the data]], and [[About your important data and their files|this article to learn more about where the most important data is stored]]. For reference, see [[Refresh Firefox - reset add-ons and settings|the article about refreshing Firefox]].