TooManyTabs - Ever tried having 20 tabs or more open in Chrome?
Tab Stash - Tab Stash is a browser extension that helps you keep your tabs straight, saved, and restore them later.
Tab Wrangler - Automatically closes inactive browser tabs
Tablerone - Browser extension for saving, organising, and exporting tabs. Save multiple tabs with one click. Get more done with a clean browser.
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.
tabExtend - Easily save tabs and quickly create notes in your browser