I simply want to change the colour of 'visited links' to RED so that I can easily see which results I have clicked on. A friend showed me a Google result that mentioned this add on being able to help me, but I don't know where to start. I'm 74 years of age and computing is not my strong area. I used to have this ability on my computer, which I seem to have lost since I downloaded the very latest Firefox. I have lost contact with the person who installed it for me.