Perception grants you a limited license to use this software for an evaluation period not to exceed thirty days. If you continue using this software after the thirty-day evaluation period, you must make the $12.95 USD registration payment to Perception at... http://www.cmfperception.com/ezbackupfirefoxpro/order.html For more information regarding EZ Backup Firefox Pro, refer to the README.TXT file, and for ordering information refer to the REGFORM.TXT file.