Is there any marker-line like firefox extension? I would like some way to mark where I was before I scrolled so I don't need to remember exactly where I was before scrolling.
I also use Vimperator, so if there's any solution related to Vimperator that's good. I suppose some people get around this by using smooth-scrolling but I personally don't like that and prefer scrolling by page or half page.
Edit: I am not talking about highlighting text on web-pages.
Here's the pidgin markerline plugin description: "Draw a line to indicate new messages in a conversation."
Here's a screenshot of it in action:
In this case all the text below the red line would be stuff that was not visible before I hit page-down in Firefox.