Tab tracker is your one click extension to every tab in every window. Tab size gets smaller and smaller in the tab bar as you open more and more tabs, personally I feel it's a sin to close any of your tab before your work is done. Once you open more than a few tabs, you can only see icons in the tab bar for all the tabs. It becomes very difficult to switch between tabs when you can't read the title and 10 tabs of same website with same icon is opened. Tab tracker is an extension which takes all your windows and all the tabs in it and smarty merges them according to the website and helps you switch tabs in 2 clicks at max. This is the type of extension you don't know you need before you actually start using it.