agree, seems it's look like major IMPORTANT feature that make consider for users who want to change browser or not. It should take more action not just change status to exploring more and archive it... I don't know how much time need for explore sinc...
I want this too!! would be better if it can sync with other devices. I mean, for now I use collections feature in firefox android but it can't sync to other devices that's make me cry... if group tabs and sync with other devices come in soon, I'm sur...
