The Simple Tab Group icon was not visible after installation. I needed to right click Extensions icon, choose Simple Tab Groups settings wheel icon, then pin to toolbar.

Please, add possibility to display icons of all groups in the toolbar at once, as it is implemented in Opera

Now, for use it, you must click 100500 times tom switch between tabgroups

Design become from 1991 year.
Garbage!!!!

Has many bugs that are absolute deal breakers at the moment. It is very easy to loose all the saved tabs.

The best extension for managing multiple tabs out there!

It's good. Some suggestion: Please put the new created group on the top since we want to use the new group frequently.

Overly complicated – too many preferences. Doesn't work as advertised. "Create new group" dumps you in the preferences with no clear way forward. Breaks the "Add-ons and Themes" item under the "Tools" menu. Don't install.

Da ich stänig irgendwelche tabs auf habe, sehr nützlich

Despite what some people say, this extension is very easy to use and simple and has worked flawlessly for years and it is still working and almost bug-free.
But is it still relevant after Mozilla updated the "Firefox multi-account containers" extension 6 days ago (Oct 25, 2023)? Is there a feature comparison somewhere?

This is exactly what I needed all these years. Finally I don't have a constant mess of dozens of tabs and multiple windows taking up taskbar space. It's so much easier to keep track of everything now. I put the addon button in the upper-left corner, replacing the default Firefox button, stylized it with custom CSS, and now it's perfect.

This is less "simple tab groups", and more "complex tab and window organisation". I think the extension is let down both by its name, and by various articles that claim it offers similar functionality to chrome's tab grouping. It's also relatively unintuitive to use.