Instruction how to get debug symbols for all packages can be found here: https://wiki.ubuntu.com/DebuggingProgramCrash.
It is possible that this crash happens due to those warning messages, so attaching that config file could be helpful too. -- Crash when downloading folders of files https://launchpad.net/bugs/70555 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs