said by illJazz:
Check the third link in user comments from above on that page. That's how I got to the page IIII posted! The one I posted is an enhanced version of the regular sessions saver
. Seems like it's not available anymore 
Third comment on the SessionSaver install page takes me to the Recall extension page for Mozilla. The link you posted at the top of this thread leads to a board discussion about SessionSaver, version 2d, written by Rue, but the link in the top post is dead.
But the SessionSaver page link I posted leads to SessionSaver install page, version 2d, written by Rue. I must have missed something in all of the link hopping?