I have a Mac Pro laptop. Firefox has been my default browser. I never had problems accessing websites before, but now, suddenly, I get a rejection notice that prevents me from using certain websites and even links in emails. I am 74 years old and not technically mobile or able to figure out how to correct the rejection notices I receive. You have no phone number or other way to reach you. I have looked and tried to find where the problem may be but I have been unsuccessful. I have no idea if it is an accessibility problem or a connectivity problem . As well, the fonts on any instructions you provide are almost impossible to read as they were written for midget eyes. I would be grateful if you could assist me and send many thanks.