favorites and preferences are missing

Binary package hint: firefox-3.0

went to the library and connected to their free wifi. now i am back home and all of my bookmarks, favorites, etc. are gone. WTF?

ProblemType: Bug
Architecture: lpia
Date: Sun Apr 5 19:03:48 2009
DistroRelease: Ubuntu 8.04
Package: firefox-3.0 3.0.8+nobinonly+nb1-0ubuntu0.8.04.2netbook0belmont1
PackageArchitecture: lpia
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox-3.0
Uname: Linux 2.6.24-19-lpia i686
UnreportableReason: This is not a genuine Ubuntu package