Add sub-tab groupings feature from Chrome to Firefox

I've been trying to move off from Chrome to FireFox (FF) since FF is superior in many ways but it's been very hard since FF doesn't have the sub-tab groupings like Chrome does to help with organizing my open tabs. It's easier for me to move from Chrome to Edge browser instead of FF. Can Mozilla FF add this "sub-tab groupings" feature please ASAP to help me and millions others move on from all Chromium based browsers? Thank you!