Review the fwlog-report and fwlog-report-view scripts. You might have to
change the interface name and a few other details (firewall log path, 
chmod group name, etc.).

The report is formatted to 132 columns.

You can run the fwlog-report script in root's crontab. The script will 
also rotate the log files. If you simply want to view the logs without 
rotating them, use the fwlog-report-view script.