Manage My Tabs - Manage My Tabs is a browser extension that helps you manage your tabs and saved current data automatically.
OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.
Tab Stash - Tab Stash is a browser extension that helps you keep your tabs straight, saved, and restore them later.
Session Buddy - Manage Your Browser Sessions
Tabli - A simple, powerful tab manager
Tabs Outliner - Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.