One of the most confusing interfaces, and most unpredictable interactions of any add-on I've used to date.

I created 4 tab groups -- social media & news; payments & banking; messaging; shopping cart. I populated each with several url's that I go to frequently. I created each group in a separate window and then selected the set of tabs and created the group. So far so good.

The next day I come back, I'm on tab in my shopping cart group which I had open and then select the group social media, which I had closed the evening before. It opens in the shopping cart group. Worse, it empties out my social media group, which is now for some reason associated with the shopping cart. So I have to recreate the group on new window and remove them from the shopping cart. Why? I have no idea.

Worse, if I try to move the tabs from my shopping cart by putting them in my original social media group, it tells me the shopping cart group is closed. Why? I have no idea.

This add-on seems so simple, yet, none of the features makes sense in its implementation. This could be a great add-on if it had any consistency. I'm still using it, but every day I have to reset one or more of my tab groups, scratching my head each time.

Consistency. This is not...