Mel,
Habve you tried the change quick trick? :-) :
-Place your cursor on a blank part of any page.
-Hold down the control key (Cntrl) and
-Hold down the left mouse key (click)
(I use my 1st finger)
(while holding down both of these)
-scroll the mouse wheel towards your body.
(I use my middle finger)
-Let up on the key and mouse, and you should have larger text.
Practice will allow you to get any size that is comfortable for reading.