If you are running firefox, you can use the userContent.css file to apply a custom style to visited links on HN to make them do anything you want. Something li

If you are running firefox, you can use the userContent.css file to apply a custom style to visited links on HN to make them do anything you want. Something like this in your userContent.css file: @-moz-document url-prefix(https://news.ycombinator.com/) { a:visited { color: #ffffff !important; } } Would make all visited links on HN pure white (not likely the color you want, substitute your preferred "grey" RGB color for the "ffffff" color above). Note, you do have to restart firefox to make changes in userContent.css become effective.