Within any "window" which Mozilla opens, be it a bank or credit card site or airline site, the entire data segment of the website's info is centered in about half the square inches of the window. Thus the print is much too small to easily read and much of the screen's open space is totally un-utilized. There must be some default for Mozilla that expands the websites' data to fill the entire available area of the internal portion of the window. How do I expand it ??