Tabs Groups Manager от Clément Grennerat

This Firefox Add-ons allows you to save, sync and store yours tabs into groups.
This allows you to sync your tabs between all your computers (with Firefox sync) and to don't lose your tabs when you close Firefox.
You can create groups of tabs : you are always on a group and all tabs are sync to the current group.

Features :

- Create custom groups of tabs (The current group is synchronized with current tabs)
- The add-on work on only one window that you can change as you want
- You can define a tab as common to all groups
- You can define a tab as not sync with others computers (if it's a common tab)
- Add-on is independent of the browser pin system