SmartTab Manager от Justacat

Welcome to your new go-to tool for managing tabs efficiently and with ease. Create new groups and add new tabs whenever you want! For those who like to keep lots of tabs open, for work, study, or just some leisurely browsing, and can't bring yourself to close them or for those who want to stay organized, now you no longer have to worry. Your tabs will be neatly grouped and ready whenever you need them.

Thank you for choosing this extension.
Happy browsing!