Just a hint to firefox users

[frankthetank]

Originally Posted by Useless Warrior

Frank, with Firefox open, try Bookmarks > Manage Bookmarks > File > Import...Select 'From File' and search in C: Documents and Settings/Your UserName/Application Data/Mozilla/Firefox/Profiles/whichever profile you use/bookmarkbackups/
and find the most recent file.
If that doesn't work. Take one of those backups and use it to directly overwrite your empty bookmark.html in your profile folder.

I couldn´t solve it that way. All data (passwords, cookies) still exists. Bookmarks, history and some settings like default homepage are gone. It seems to me the default user was overwritten.

Thank´s for the hint UW!