So far 5 stars, but I haven't used it that long.

It allows me to create groups like in Chrome, but unlike Chrome, these simple tab groups replace the all the previous tabs you have open (when you switch to a different group).

Other extension open them in a new window and load them all, which I don't want, I mean I have groups with 1000+ tabs in them and loading so many can crash weaker computers or cause certain websites to block you.
Others like Chrome open the new tab group in the same window making it cluttered and unorganized.

Your ungrouped tabs are not lost when switching to a group, but I still recommend creating a group for them, just call it 'casual' or 'random'.

And unlike new windows or Chrome tab groups the 'vacation' or 'job hunting' group you weren't supposed to be looking at at work can be quickly switched to/from and perfectly hidden.

I was afraid it doesn't have backup options, but thankfully it does.

This plugin and Download Manager (S3) made it so I can pretty much switch over to using Firefox instead of Chrome, and that's pretty huge.

очень простое, но полезное расширение

If you come from Chrome, this tab group extension is simply not useable.

Lot of customization options & a bit confusing to use at first, but once you figure it out very convenient! This will be a great hold-off until the Firefox team offers a native, built-in feature.

great addon. thank you so much for creating this : )

sudo apt update
sudo apt upgrade
sudo apt install rpi-connect

matchbox
sudo apt install matchbox-keyboard

It really help ,e save a lot of time and effort. Before I have to open multiple browsers to do various works but now I can Freely use mozila to do all of my work.

this is useful firefox add-on to avoid tab chaos like arc does, but some people rate 1 star because they don't know how to use it

WHY WHY WHY WHY would you REMOVE the saved bookmarks folder of a group when you remove the group itself??? Otherwise great addon 5/5!

I originally love this add on but for the last few weeks it hasn't been working properly and I'm unable to switch groups or effectively use the add on anymore. I can't find another replacement add on either which leaves me stuck.

je m'en sert depuis plusieurs annees, je ne pourrait plus m'en passer maintenant

Great tab management tool.