Tab Stash - Tab Stash is a browser extension that helps you keep your tabs straight, saved, and restore them later.
Tabs Outliner - Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.
SplitUp! - A fun and elegant tab manager
Tab Utilities - Tab Utilities is an ultimate tab solution for all kind of users who want to manage their tab, create multiple session and search for new tabs, etc.
Tab Session Manager - Save and restore the state of windows and tabs.
Undo Closed Tabs Button - Add a toolbar button onto any toolbar to undo closed tabs