Hi, are other program's icons normal size? If it's just Firefox, try: Start Menu > All Programs/Apps - or do a search for Mozilla Firefox. Now right click on Mozilla Firefox > Send to > Desktop (create shortcut). You should now have a new shortcut on your Desktop. If it's OK, you can right click > Delete the old one.

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i did as you said...all other icons are of normal size. the icon for firefox is of normal size, but the picture inside is very very tiny. i can just barely see it.i tried to send you a copy of it so you could see, but that didn't work, either. i had also just done a microsoft update thing, where i had to restart my computer. i have windows 10. it seems to be causing me other problems now, also. i can't down load a program that i have been using for several years...superantispyware...thanks for any help you can give me.