I tried Firefox,too. This should be simple, downloading workarounds or re-coding cascading sheets or readability apps are a lot of trouble. When the sun is in my eyes, I use a visor, I don't drive the opposite direction!
I have never joined a forum just to complain. ClearType, contrast themes, larger font is not what I want. I want to decide for myself the color of text. I want black. Don't take away my choices, Microsoft. Don't tell me black is hard on my eyes. GRAY is driving me nuts. Everywhere the techs seem unwilling to say the truth: you must put up with gray. I want black. Then I want to enlarge it.