Earlier quoted context omitted.
Right-click the tab bar, select "Bookmark all tabs", save them all to a new folder (name it after the current date or whatnot).
Or just close all those tabs. Realistically you're never actually going to get around to reading them and they're just there weighing you down. Seriously, close them. Forget they were ever there. If you haven't looked at them yet it means that they're not that important!
Additionally, the history-tracking of the browser is good enough and my google-fu sufficient so I can find anything I need that I've previously visited.
Keeping my tabs lean makes me much happier!