I am not sure what your problem is, is it missing bookmarks ? * see [[lost bookmarks]] I hope you did not use the delete settings option when uninstalling forefox, because I do not think Firefox makes it clear that when you use that option it will delete ALL of your bookmarks etc from your profile from ALL versions of Firefox that you have installed. See [https://support.mozilla.com/en-US/questions/787020#answer-141048 this thread] In the thread I linked to the user was lucky and able to recover deleted bookmarks, if something similar happened to you then good luck.