how do I set or get firefox to print more than one all pages the print using verizon emails is there a setting to change I have been told by verizon techs it is not my printer

when opening an email using verizon emails I can only print one page. I have checked an I do not have a printer or computer problem because the printer prints more than one page with others such as gmail. We feel there is a print setting in firefox that needs to be changed. How do I change this??