NextPlease Firefox extension doesn't work in 3.6+. Any updates or similar extension?

NextPlease Firefox extension doesn't work in 3.6+. Any updates or similar extension?

I use a Firefox extension called NextPlease which allows me to use the keyboard to go to the next or previous page on web pages which have Previous/Next paging links. Like the Google search results. I downloaded a version from http://cisengineer.com/firefox/ for my Windows XP. On a Windows 7 FF 3.6 machine, Firefox can't import the extension because it's not compatible with FF 3.6 even though it worked in FF 3.6 in Windows XP.