Tab Session Manager for Chrome and Firefox, meanwhile, gives you all the functionality you need to organize your tabs. It saves you generating too many tabs in the same space in your browser. Once you reach that limit, opening up a new tab will create a new window, and the process starts again. If you click on Options (the wrench icon) up in the top right corner of the extension's pop-up window, you can set a tab limit for each window. You can search through open tabs, get the add-on to look for duplicate tabs, create custom groups of tabs, drag tabs between windows, and plenty more besides. Click the extension button and a pop-up window appears, giving you a favicon-based overview of all the tabs that are currently open, sorted by window. Then there's Tab Manager Plus for Chrome and Firefox.
Tab Manager Plus gives you a useful overview of your tabs.