I have low vision. Most (many) websites use text in a relatively light grey which is extremely difficult for me to read, even with magnification. Is there any way for Firefox to substitute a darker font (maybe just make it bold) for what that website is actually sending out? Helpp would be most appreciated. I am getting to the point I cannot use the internet easily because of this issue. Running Windows 10, with all updates. Firefox is up to date. Many thanks in advance, Mike