Once installed, here's how you use this thing.
- Whenever you visit a page that has, say photos in the middle, click Tools -> Greasemonkey -> User script commands -> Scroll again then on the next page load that page will automatically scroll the same position you were on when you clicked this.
- To disable it click Tools -> Greasemonkey -> User script commands -> Scroll never
- Install firefox.
- Install greasemonkey.
- Go to the link scrollagain.user.js a click the Install button in the upper right. If you don't see this button you haven't installed greasemonkey correctly -- in which case return to step #2.