The Gnu Cash development team received notice about a new book published by Packt Pub, UK: Gnu Cash 2.4 Small Business Accounting, by Ashok Ramachandran.
This is a Beginner's Guide for managing your accounts.
Check the "Internet Plug-Ins," "Input Methods," "Input Managers" and "Scripting Additions" sub-folders and delete any files associated with a third-party add-on. If Safari runs as expected, you can safely empty the trash.
Otherwise, use the "Put Back" feature to restore the files to the original locations.
Quit Safari and attempt to uninstall any third-party add-ons.