So, I created a new profile with about:profiles. Then the new profile was selected as default (I do not know why, who invented this retarded idea.) I then opened firefox with the new profile just to see what it uses (I just wanted to browse a site to see if it's working properly without the addons). Afterwards, I set my old (with all the settings, addons, bookmarks) as default and deleted the new created profile. And wow look at that, everything is gone. Even under the "profiles" folder under %Roaming% there are no files within the "bookmarks" folder. Can someone tell me what the stupid shit is!?