I have a bookmarked search page which returns a set of questions within my favourite tags (e.g. system-agnostic and dnd-3.5e). I have an addon that I rely on heavily, which lets me right-click on links then mark them as read from the context menu. The URLs are fine when I hover over them, but when I right click, they are changed by JS to have some extra parameters (
?s=13|0.000 or the like) which breaks my ability to use this addon, because marking a different URL visited doesn't change the original.
Opening the pages works, but if I've right-clicked they'll carry that parameter, and I tend to do that first by habit. This seems to show up mainly in this search page.