A lot of times I notice a link in Hot Network Questions, or Linked Questions, or Related Questions, or the regular question list, that looks familiar but isn't marked as visited in my browser. Usually when I go to it, it is in fact familiar, in that I already visited it but with a URL that ends in a different source-tracking query parameter, such as
Is there a script or other program to automatically mark (most of*) these links as visited?
*There's also share URLs with their trailing user IDs and missing slugs. That's a bit of a different issue, but still worth including if possible.